There are many potential answers to that, and opinions would differ. The biggest jump race is probably the Aintree Grand National, held on the first Saturday of April near Liverpool in England. The Epsom Derby, also in England, could be argued to be the biggest flat race, though there are other contenders.
Yes You are allowed to race 2 year olds
you should barrow your horse
It must be a three year old.
The Preakness Stakes is a horse race held at Pimlico Downs in Baltimore, Maryland once a year. This year on May 15th.
hockey
January 11, 1937 in Cuba.
1 year old :)
It should cost roughly 200,000 pounds per year for a race horse, maybe 12,000 for a normal horse, this includes first class stables food and training (for race horse).
The Kentucky Derby is a horse race, you would win it on a horse, specifically a three year old Thoroughbred.
The Cambridgeshire horse race starts in Cambridgeshire, England. This prestigious race is held at Newmarket Racecourse, which is located within the county. Cambridgeshire is known for its rich horse racing heritage and is home to several significant racing events throughout the year.
Whirlaway was a slight horse, weighing only around 1025 pounds as a three year old.
The Breeders' Cup Classic Horse Race in 2008 was broadcasted on NBC. Viewers could tune in to NBC to watch the race live as it happened.