Thoroughbred Insider Magazine

Thoroughbred Insider Magazine Quarterly Thoroughbred Racing News across the United States Past Races, Future Races and What's to

02/24/2023

By accident I came across your name and profile, FOR A FEW SECONDS IT TOOK MY BREATH AWAY. I BECAME AFRAID TO MOVE FURTHER INTO YOUR PROFILE. Courage moved me across your pages , I found what I was seeking, to just verify, your happiness, and your Beautiful Face, that I missed seeing. I wrote a song from a pome I remembered : The scent of a rose is the forgiveness, ythat lies upon the foot that crushed it. MY MUSIC SKILLS HAVE MAXED TO MY ALL TIME HIGH, I will record it and place it here. NO MORE DO I HAVE TO WORRY, GOD KEPT HIS PROMISE. HE PROMISED YOU WOULD BE HAPPY, AND SO YOU ARE. All the pain is over, all I have is the memory, And that I get to keep within me. Remember, keep the wind in your sails and you will cross any sea with ease. The best part of our life’s are right now. And never forget to smile, should you think of me.

08/18/2019
08/18/2019
08/18/2019
04/28/2016

The Secret of The Kentucky Derby - Derby Long-shot -and Gary's picks for the Kentucky Oaks . will hit stands on May 1 2016

02/25/2016

Top 12 to the Derby
1. NYQUIST (c, Uncle Mo—Seeking Gabrielle, by Forestry) O-Reddam Racing LLC. B-Summerhill Farm (Ky). T-Doug O’Neill
2. MOHAYMEN (c, Tapit—Justwhistledixie, by Dixie Union) O-Shadwell Stable. B-Clearsky Farm (Ky). T-Kiaran McLaughlin.
3. MOR SPIRIT (r, Eskendereya–Im a Dixie Girl, by Dixie Union) O-Michael Lund Petersen. B-Elkstone Group LLC (PA). T-Bob Baffert.
4. AIROFORCE (c, Colonel John—Chocolate Pop, by Cuvee) O-John Oxley. B-Stewart M. Madison (Ky). T-Mark Casse.
5. EXAGGERATOR (c, Curlin—Dawn Raid, by Vindication) O-Big Chief Racing. B-Joseph B. Murphy (Ky). T-Keith Desormeaux.
6. GREENPOINTCRUSADER (c, Bernardini—Ava Knowsthecode, by Cryptoclearance) O-St. Elias Stable, MeB Racing Stables LLC & Brooklyn Boyz Stable. B-Oakbrook Farm (Ky). T-Dominick Schettino.
7. SWIPE (c, Birdstone–Avalanche Lily, by Grand Slam) O-Big Chief Racing LLC, James C. Justice & Billy R. Shelton. B-Lou Oppenheim (Ky). T-Keith Desormeaux.
8. COLLECTED (c, City Zip—Helena Bay {GB}, by Johannesburg) O-Speedway Stable LLC. B-Runnymede Farm Inc & Peter J. Callahan (Ky). T-Bob Baffert.
9. BRODY’S CAUSE (c, Giant’s Causeway—Sweet Breanna, by Sahm) O-Albaugh Family Stable. B-Gabriel Duignan, William Arvin Jr & Petaluma (Ky). T-Dale Romans.
10. FLEXIBILITY (c, Bluegrass Cat–Santa Vindi, by Vindication) O-Klaravich Stables Inc. & William H. Lawrence. B-WinStar Farm LLC (NY). T-Chad Brown.
11. LET’S MEET IN RIO (c, Flatter–Rio Carnival, by Storm Cat) O/B-Juddmonte Farms Inc. (KY). T-Bob Baffert
12. CONQUEST BIG E (c, Tapit–Seeinsbelieven, by Carson City) O-Conquest Stables, LLC. B-Gainesway Thoroughbreds Ltd. (Ky). T-Mark Casse

2016  KENTUCKY DERBY WILL HAVE A FEW OF THESE HORSES Exaggerator (Curlin – Dawn Raid, by Vindication) Moving him up on m...
02/06/2016

2016 KENTUCKY DERBY WILL HAVE A FEW OF THESE HORSES

Exaggerator (Curlin – Dawn Raid, by Vindication) Moving him up on my list before his race in the San Vicente is due to the tough race that Sunny Ridge ran in the Withers Stakes at Aqueduct. While it did not flatter anyone, even the winner, Exaggerator is a tough horse that looks to improve with age and experience. He is a good-looking son of top stallion Curlin and also contains some speed influence in his pedigree which gives him that speed he displayed in the Delta Downs Jackpot. I expect him to continue improving, and if he loses the San Vicente, it is not the kiss of death for this c**t and his Derby dreams.

Nyquist (Uncle Mo – Seeking Gabrielle, by Forestry) Nyquist looks to be the obvious choice as a top horse for the 2016 Kentucky Derby; however, I have reservations as I see more c**ts showing their classic potentials. While there is plenty of immediate class and back class in this c**t’s pedigree, I am reserved on his ability to be competitive at the classic distances of 10 and 12 furlongs. So far, there is nothing I can say about him that is truly negative because there is so much unknown and the c**t is perfect in 5 starts. The likely favorite for his three-year-old debut in the San Vicente, we will see how he does as a more mature horse before stretching out to 9 furlongs in the Florida Derby.

Mor Spirit (Eskenderya – I’m a Dixie Girl, by Dixie Union) This c**t has Bob Baffert hoping for another Kentucky Derby win in 2016. He is bred to be capable of winning at middle and classic distances. After an impressive win over stablemate Toews on Ice in the Los Alamitos Futurity, the c**t is working toward a start in the Robert B. Lewis Stakes at Santa Anita. Can he continue to improve with age? His pedigree suggests he will be at his best at age three and possibly four. Bob Baffert believes the c**t is really hitting his growth spurt and getting bigger, better, and more mature with every passing day.

Airoforce (Colonel John – Chocolate Pop, by Cuvee) After winning well on turf, he tried dirt for the first time in the Kentucky Jockey Club Stakes where he pulled away from a nice field in the mud. He was flattered more when Mor Spirit came out of the race to go on and win the Los Alamitos Futurity. Airoforce does have a pedigree that leans more toward dirt than turf, however, and it also leans toward speed rather than distance. Cuvee, a son of Carson City, was a speedy young horse before retiring to stud. He has been working very well at Palm Meadows for trainer Mark Casse. Look for him to show up in the Sam F. Davis Stakes at Tampa Bay Downs on February 13.
Sunny Ridge (Holy Bull – Lignum Vitae, by Songandaprayer) Sunny Ridge showed his grit in the 2016 Withers Stakes, battling with Vorticity through the entire stretch. He looks like a horse that will enjoy the classic distance in the Kentucky Derby, but questions surround his talent. Yes, he defeated Flexibility in the Wither Stakes, who flattered Mohaymen by winning the Jerome impressively in his last start. However, Sunny Ridge ran the slowest Withers in the history of the race. He did earn a 106 speed figure, according to Equibase. Look for him to run in the Gotham and the Wood Memorial. This would give the c**t three preps before the Kentucky Derby.

Brody’s Cause (Giant’s Causeway – Sweet Breanna, by Sahm) This c**t finally returned to the work tab and is likely to show up in the Tampa Bay Derby and then the Blue Grass Stakes at Keeneland. This will give this big son of Giant’s Causeway two preps before the Kentucky Derby. He was highly impressive in the Breeders’ Futurity in the fall at Keeneland. His huge stride helped him run down the impressive Exaggerator, and then he was able to really close in on the top competitors and finish third in the Breeders’ Cup Juvenile. I, personally, would like to see him have some more tactical speed before I move him higher on my list.

Zulu (Bernardini – Temporada, by Summer Squall) So far, this c**t is undefeated in two starts. He broke his maiden in December and took it to a field in an allowance in Gulfstream. As a two-year-old, he cost $900,000 after being a $400,000 yearling purchase. Trained by Todd Pletcher and ridden by John Velasquez, the c**t has all the right connections. He is being pointed toward the Fountain of Youth and the Florida Derby. As most of us know, Pletcher likes to target those big races with a large amount of points. On a side note, I love the inbreeding to Weekend Surprise through A.P. Indy and Summer Squall. He also has a double dose of Northern Dancer on the bottom and a single dose on the top.

Greenpointcrusader (Bernardini – Ava Knowsnthecode, by Cryptoclearance) A full brother to Algorithms and a half-sibling to horses such as Justin Phillip and Keyed Entry, Greenpointcrusader still must prove he can be a top competitor on fast dirt. He attempted to go toe-to-toe with Mohaymen in the Holy Bull, but he was unable to keep up with the Tapit c**t and was left behind when Mohaymen lengthened his stride. Greenpointcrusader is such a handsome c**t, and if he can improve as he matures, he could be a threat, but for now, he has dropped down on my list quite a bit after the Holy Bull.
Mo Power (Uncle Mo – Rhiana, by Runaway Groom) I am taking a shot in the dark with this good-looking son of Uncle Mo. He broke his maiden on the Holy Bull undercard. His first start, he finished second at 6.5 furlongs, making up mass amounts of ground to just miss the winner by a neck. In his second start, he sat closer to the pace and was able to establish a one-length win over a closing Doctor Mounty (Street Sense). This c**t has a very interesting pedigree to me, and I wonder if Pletcher will try to get him to the Derby in three months now that the c**t has shown more promise with increasing distance.

Trevor Denman on the magic of Zenyatta, race-calling and how America has lost touch on horse careOn opening day of Santa...
12/30/2015

Trevor Denman on the magic of Zenyatta, race-calling and how America has lost touch on horse care
On opening day of Santa Anita’s current winter-spring meet, most of the familiar elements were in place: swollen crowds and top-notch racing delivered beneath unseasonably pristine skies. But one essential ingredient was noticeable for its absence - that of long-time Santa Anita race-caller Trevor Denman.

This year was the first since 1984 that Denman’s voice has been missing as Santa Anita begins to usher out the old to make way for the new. Earlier this month, Denman announced he was stepping down after a much-celebrated 33 year-stint as the voice of Santa Anita, though he will continue to call races during Del Mar’s two annual meets in the summer and fall.
But it’s not only races that Denman reads voraciously. He will spend the intervening months in splendid isolation at home on his farm in Minnesota working on academic research projects - the continuation of a lifelong appreciation for the sciences and the humanities, namely philosophy, history and literature.
A native of Durban, South Africa, Denman moved to the United States in 1983, where recognition came quickly. Within months of calling his first race at Santa Anita in the fall that year, he was snapped up full-time by the track.
Since then, he’s established his pre-eminence in the field both here and beyond, his distinctive style — razor-sharp insights delivered with revving-engine urgency — as familiar now to racegoers as the win, place and show. The snappy Denman epigrams (“This Is Unbelievable!” and “away they go”) are also too numerous to list in full.
With his workload significantly lessened, Daniel Ross asked Denman to reflect on his career in an industry he has served for 44 years - a career in which he says he has “literally no regrets – not one”.
Q. You've called races at Santa Anita for 33 years. Confined to taking the memory of only one solitary race from that period, what race would you single out?
A. Undoubtedly, Zenyatta winning the Breeders' Cup Classic [at Santa Anita in 2009]. That Breeders’ Cup Classic was just fantasy. I’ve never experienced a reception like it. It’s very, very rare in horse racing that you get almost 100 percent of everybody behind one horse. I think even the people who lost a bet were still in awe of her and cheered for her. I’ve never heard a reception like it when she came back.
Which horse would you single out?
Again, Zenyatta. She was the most thrilling. She was probably lucky that her running style led to goose-bumps in the finish. If a horse goes straight to the front and wins, or sits third and wins, like some of the great horses, they’re not as dramatic as Zenyatta. It’s so rare for you to get a horse to come out of the clouds like that.
And, when they do, they don’t leave it to the last 50 yards. But she used to do it all the time. She looked like she couldn’t win half the time. And she was so enormous, with a great character. She might not be the fastest horse I’ve ever seen, but she’s the most thrilling horse I’ve ever seen. And she knew how to work the crowds. She did that right foot thing, as in, ‘come on, you can do better than that’. And the crowd just went bonkers.
There probably will never get another horse like this. Zenyatta had everything going for her.
What moment would you single out?
This makes it a hat-trick for Zenyatta! When she ran that last eighth of a mile in the Classic.
Looking back over your career, what are most proud of?
Having brought the welfare of the horses to the forefront. When I arrived here, the whipping and the whips were diabolical. It is much better now. I was in the vanguard, behind Grace Belcuore [who established the California Equine Retirement Foundation in 1986], of aiding retired racehorses as well. There were almost no retired racehorse shelters in the 1980s. There are plenty now.
How did you get involved in the issue of animal welfare?
When I first came here, I couldn’t believe they didn’t have a retirement program. Grace Belcuore was the one who got everything going. She brought me on board as a spokesperson, and of course, I was very positive about it.
In the early days it was hard work. That was in 1985. My goodness, how things have changed. Now, these retirement horse farms are a dime a dozen, and the racetracks all help out. But to begin with, you were changing people’s perceptions.
One rich guy I went to, he said, ‘I’m not paying for other people’s problems’. That’s like saying: ‘I’m not giving money to an orphanage because that’s someone else’s problems.’ You were hitting them with a concept that they hadn’t heard before. But they came around, and now it’s 100 times better.
What person has had the greatest impact on your career?
Alan Balch [former senior vice president of marketing and assistant general manager at Santa Anita]. He had the sagacity to give a complete outsider a chance at Santa Anita.
How did your hiring come about?
I wanted to get out of South Africa, and I came to San Francisco to call a jockeys’ international race. But I knew some trainers in LA, and stopped by Santa Anita and asked, ‘can I call a race?’ There had been a guy who had been in South Africa. So, Alan Balch called him and said, ‘you were in South Africa, do you know this guy?’ He replied, ‘yes, geez, I know him. Let him call a race.’
So Alan let me call the race. And the next day, he sends some guy up into the grandstands who says, ‘Alan Balch would like you to go see him’. And he let me call another race on the second day. I went back to South Africa and two weeks later I got a letter saying, ‘hey, if you’re interested in the job, let me know’.
The first few weeks were tough because, of course, people don’t like change. It wasn’t just a new announcer but a new accent. The first month was tough, but after that, it went very smoothly.
Did you shape some of your more memorable moments as a race-caller before the occasion, or were they spontaneous?
All my calls are totally spontaneous. I know some announcers pre-plan their calls, but to me it sounds phony when they are pre-planned. It has to be intrinsic, visceral for me.
What's the most difficult aspect of your job?
Staying focused for every race. I give 100 percent to every race no matter how minor it may be. One cannot become complacent.
What advice do you have for emerging race-callers?
No matter who you are, you are going to need some luck in getting the right job. It's the nature of the game. Try to learn about horses and racing. Visit the backstretch and soak up everything people tell you.
Racing is the only sport where the announcer is not necessarily an expert on the game. Become an expert. Knowledge of the game is so much more important than the voice.
You've mentioned how racing has made notable improvements in animal welfare (in whip use and aftercare, for example). What still needs to be done to improve horse welfare in the sport?
The claiming game needs to change. When a horse takes a big drop in class it almost always has a major problem. It is just so callous to say, ‘there is something wrong with my horse, you take him’. One is risking the horse’s life.
There should be a rule where you can only drop a horse one level at a time. America needs to catch up with the rest of the world on animal welfare. I know people don't want to hear that, but it is the truth and needs to be said.
I can speak first hand of England and South Africa. I own two racehorses in South Africa. If they just looked at you funny, they’d be scratched. One kicked the stall once, and he was off for three months with just a little bruising.
Somewhere along the line, America lost touch with horse care — not everyone, of course — but we need to be pulled back into line so that we treat horses more humanely.
Your race-calling career spans 44 years. During that time, in what area has horse racing made its greatest strides forward?
Ironically enough, probably in horse welfare. The days of nerving horses are over and there is a movement now to save retired racehorses, which there never was before.
In what area has horse racing made its most significant strides backwards? The game has become a numbers game. The new handicapper often has no idea about horseflesh, it's just ‘what figure does he have?’
In this year's Breeders' Cup Classic, I saw the selections of 14 highly respected handicappers and only four selected American Pharoah. Had he had the highest figures, they probably all would have selected him. The people who did not select him had no idea that they were looking at one of the best horses in decades.
To them, American Pharoah had four legs and a tail, just like all other horses. It's sad for racing.
Aside from your work at Del Mar, what does the future hold?
First, some time off. No pressures. Down the road I will do research into subjects that interest me and see what new adventures I can get into. I'll pursue my motto of ‘what's the meaning of life - a meaningful life?’
I’m huge into the Teaching Company, which gives university courses on tape. I’ve got two or three with me at any one time.
I’m vegetarian, 99 percent vegan and the biggest project I’m doing research into right now is the vegetarianism of the Church Fathers and the Desert Fathers. The Desert Fathers were almost unanimously vegetarian. The Church Fathers, it’s much harder to find out if they were. I’m making very good progress. I’ve found out a large number who were [vegetarian]. It’s heavy going reading their writings. You have to read 50 pages to get one piece of relevant information. It’s hard going, but I enjoy doing it.
Who do you admire most outside of horse racing?
Apart from my wife, my top 10 of the deceased, chronologically, would be Pythagoras, Epicurus, Seneca, Leonardo Da Vinci, Galileo, Voltaire, Thomas Paine, Percy Shelley, Gandhi and Nelson Mandella. You could throw Tolstoy in there too. I do not have a living hero, but Neil deGrasse [Tyson] would come closest. You're stranded on a desert island with only one book. Given a choice, what book would it be?
The Demon Haunted World by Carl Sagan. If everybody lived their lives by what Carl Sagan says in there, man it would be a much better world. He’s just so pragmatic.

January 1 Feature 2016;Trevor Denman on the magic of Zenyatta, race-calling and how America has lost touch on horse care...
12/30/2015

January 1 Feature 2016
;Trevor Denman on the magic of Zenyatta, race-calling and how America has lost touch on horse care

Trevor Denman on the magic of Zenyatta, race-calling and how America has lost touch on horse care

Santa Anita Opening Day Tomorrow and we will have the Dayton Stakes $100,000 and Mathis Brothers Mile Stakes $200,000 po...
12/25/2015

Santa Anita Opening Day Tomorrow and we will have the Dayton Stakes $100,000 and Mathis Brothers Mile Stakes $200,000 posted on the Best Pick's for your Exacta Wagering Saturday 12/26 at www.Thoroughbredracingonline.com

The Leading Edge Of Thoroughbred Racing

12/20/2015

Mor Spirit gives Baffert early Derby prospect by taking Los Alamitos Futurity
Mor Spirit on Saturday stamped himself as a potential serious contender for the 2016 Kentucky Derby by running down stablemate Toews On Ice to win the Grade 1, $350,000 Los Alamitos Futurity, a race trainer Bob Baffert also won last year with Dortmund.

12/20/2015

Eagle looks impressive winning Tenacious
After a smooth victory Saturday at Fair Grounds in the Tenacious Stakes, where he beat Freestyler by 1 1/4 lengths, Eagle looks like a c**t ready for bigger and better things.

12/20/2015

Alsono sets five-furlong track recod in KLAQ Handicap
Alsono set a track record Saturday at Sunland Park when he wired the field in the $65,000 KLAQ Handicap. He covered five furlongs on a fast track in 55.72 seconds.

We have shared the Breeders Cup page with Thoroughbred Racing Online. Here is the link to that information. www.Thorough...
10/24/2015

We have shared the Breeders Cup page with Thoroughbred Racing Online. Here is the link to that information. www.Thoroughbredracingonline.com

The Leading Edge Of Thoroughbred Racing

American Pharoah 'on target' for Breeders'Buildup...Triple Crown winner American Pharoah was "on target" in his Breeders...
10/16/2015

American Pharoah 'on target' for Breeders'Buildup...Triple Crown winner American Pharoah was "on target" in his Breeders' Cup Classic preparation after completing his toughest workout since finishing a shocking second in the Travers Stakes at Saratoga in August. The 3-year-old has been working out at his home track in California for longer than initially expected because of cold, wet weather over the past week in Kentucky, where he is set to end his stellar career at this month's Breeders' Cup Classic."He went really well," Hall of Fame trainer Bob Baffert, 62, told reporters after American Pharoah had worked seven furlongs in 1:23 flat before galloping out a mile in a rapid 1:35.40 at the Santa Anita race track in Arcadia, California on Wednesday. "We wanted to get a strong work out of him and it looks like he handled it really well. "He's reaching, running (and he) looked like he came back happy, so we're right on target. We put a horse out there in front of him ... Madam Aamoura ... he needed a target." With Martin Garcia in the saddle, American Pharoah galloped straight off from the quarter mile chute and was set down approaching the five-furlong pole, well behind stablemate Madam Aamoura, a 3-year-old filly. "This is the first time since the Aug. 29 Travers that he's let this horse roll," said highly respected private clocker Gary Young. "The previous works here were maintenance works.
"This was serious. He started out about seven lengths behind the target and he went by the target like a freight train by a hobo at the three sixteenths. He looked good throughout." Baffert had initially planned to ship American Pharoah to Kentucky well ahead of the Oct. 31 Breeders' Cup Classic, which will be run at Keeneland in Lexington. However, uncertain weather in the Bluegrass State caused Baffert to keep his prized c**t in Arcadia "until the 25th or 27th (of October)," the trainer said.
American Pharoah entered the pantheon of U.S. thoroughbred racing's all-time greats by winning the Belmont Stakes wire-to-wire in June to become the first horse to capture the coveted 'Triple Crown' in nearly four decades. In winning a seventh straight race, American Pharoah became the 12th horse and first since Affirmed in 1978 to sweep the Kentucky Derby, Preakness Stakes and Belmont Stakes. After making his farewell racing performance in the Breeders' Cup Classic, the muscular son of 2009 Kentucky Derby runner-up Pioneer of the Nile will then retire to stud. American Pharoah then zipped through splits of 12.20, 24.00, 35.00, 47.00, 59.80 and 1:11.40.

09/28/2015

Thoroughbred Growth and Future Racing Performance
CLARISSA G. BROWN-DOUGLAS1, GARY GLENNON, PROFESSIONAL RACE ANAILSIS, ARNOLD J. STROM, PROFESSIONAL THROUGHBRED TRAINER
Kentucky Equine Research, Inc., Versailles, Kentucky, University of Kentucky, Lexington, Kentucky, And major race track’s throughout the United States.

I N T R O D U C T I O N

The success of a Thoroughbred racehorse is determined by a multitude of factors, many of which are impossible to evaluate. Thoroughbreds are commonly selected for racing ability by pedigree and conformation analysis. There have been few studies associating growth and body size with racing performance (Pagan, 1998a; Cain, 2006; Smith et al., 2006). The genetic make-up, or genotype, contributes to a horse’s racing ability by influencing physical characteristics including conformation, lung capacity, and growth potential, and mental attributes including the “will to win.” Environmental factors such as nutrition, exercise, and conditioning are difficult to quantify, and management during growth and development as well as trainer variation all influence the horse’s potential for success. Many methods of anatomical or pre-competitive performance assessment are employed by Thoroughbred breeders, trainers, bloodstock agents, and owners. However, these methods are subjective and there have been no established and fail-proof methods for predicting potential success. A large retrospective study conducted by Cecil Seaman of Thoroughbred Analysts using0 body measurements taken at Thoroughbred sales concluded that horses in the “underweight” to “ideal weight” (±2% optimum weight) range earned significantly more than those in the “overweight” to “obese” categories
(Pagan, 1998a; Cain, 2006). However, body weights in this study were estimated and not actually measured. A study of 260 Thoroughbreds born in 1981 and 1982 described associations between yearling body measurements and racing performance (Smith et al., 2006). It was reported that hip height, body length, and heart girth were positively correlated with win percentage (number of wins/number of starts). There were no
significant correlations between any body measurement and lifetime earnings; however, the study reported a trend linking taller fillies and greater earnings. Horses that won or placed in a stakes race tended to be taller as yearlings.
Mature size and the pattern of growth are influenced by the genetic make-up of the horse and the environment, but it is inconclusive if growth plays a role in the success of a racehorse. It is known that heavier foals have a greater incidence of osteochondrosis (Pagan, 1998b). Foals that developed hock and stifle OCD tended to be heavier at birth and fast-growing between 3 and 8 months. Furthermore, it is reported that
heavier but not taller yearlings command higher prices at public auction (Pagan et al., 2005). The purpose of this study in Thoroughbreds was to make objective measurements of a horse’s growth to determine if certain characteristics affect the odds of its success as a race horse.

Materials and Method

Racing performance data were collected from 3,734 Thoroughbreds raised in the USA between 1996 and 2002 and their growth records were retrospectively examined to determine if various growth characteristics could be associated with success as a race horse. The population consisted of 1,850 fillies and 1,884 c**ts raised on 54 commercial and private farms in the states of Kentucky (n=3,382) and Virginia (n=352). The pupation was represented by 456 sires. Growth measurements (body weight using an electronic scale and wither height) were taken approximately every 30 days; however, the number of records per horse ranged from 1 to 18. Growth variables were converted into percentiles and quartiles for analysis. Percentiles and quartiles provided a standard unit of measurement to compare an individual horse to the population. Percentiles rank the relative position of an individual in the population by indicating what percent of the reference population that individual will equal or exceed. The 50th percentile is the median. Percentiles take into account the spread of data around the mean. The reference growth population used was the USA Thoroughbred separated for fillies and c**ts. This reference population was created by Kentucky Equine Research, Inc. using data from approximately 7000 Thoroughbreds. Racing results were collected from the American Produce Records (Bloodstock Research Information Services Inc, Lexington, Kentucky, USA, 2006) and are complete up to October 2005. Variables recorded for
each horse included registered name, total years raced and country(s) raced in, total number of starts, wins, shows and placing, total number of starts as a two-year-old, wins as a two-year-old, starts and wins on a turf track, dirt-sprint starts and wins, dirt-distance one mile) starts and wins, starts and wins on a muddy or sloppy track, and stakes wins and places (classified as either listed or graded stakes). Each horse’s standard
starts index (SSI), also known as the racing index (RI), was recorded. The SSI indicates the earning power of an individual based on average earnings per start and enables comparison of racing performance of horses regardless of year of birth or gender. An SSI of 1.00 represents the average for each crop To account for genetic variation, the sire index (SI), also known as the sire production index (SPI), was collected for each horse. The SI indicates the average racing class of foals sired by a stallion and is calculated by averaging the SSI of all the stallion’s foals that have started three or more times in North America or Europe.

Data Analysis
Growth data were divided into four age groups: foal (1 month or 0-30 d), suckling (2-6 months or 31-180 d), weanling (7-12 months or 181-360 d), and yearling (13-18 months or 361-555 d). Within each age group, individuals had between 1 and 6 measurements. The averages of the growth percentiles were calculated so that each individual had 4 percentiles for weight and height over the study. Percentile data were then grouped into quartiles, so that instead of dividing the data into 100 even divisions, the data were divided into 4 divisions. Animals could then be described in the first quartile (percentile
of 0-25), the second quartile (percentile of 26-50), the third quartile (percentile of 51-75), and the fourth quartile (percentile of 76-100) for weight or height. Using the racing performance data, observations were made regarding each horse’s status as a racehorse. First, horses were catalogued as being “raced” or “unraced.” Unraced horses were unnamed, named with no ace record, or named and unraced. All the horses in the population were then classified as having started or not started as two-year-olds. Win percentage was calculated for horses that raced by dividing total number of wins by total number of starts. The data were presented in two different ways. First, in each age group the average growth percentiles were compared between the two groups within each performance measure (raced vs. unraced, winners vs. non-winners, raced at two years old vs. not raced at two years old, stakes winners vs. not stakes winners, graded stakes winners vs. not graded stakes winners, and G1 winners vs. not G1 winners). Second, for each age group (foal, suckling, weanling, and yearling) the percentage of raced, raced at two years old, winners, stakes winners, graded stakes winners, or G1 winners in each growth quartile (both weight and height) was calculated.

Statistical Analysis

Data for weight and height quartile (as the response variable) for each factor (raced, raced at two years old, winner, stakes winner, graded stakes winner, G1 winner) were analyzed using an analysis of variance with respect to age category. When a significant (p

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After some research I did fined that the Company that has been publishing


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