About the Kentucky Derby

About the Kentucky Derby

The Kentucky Derby has been around for more than 100 years. The race was created by Meriwether Lewis Clark Jr., grandson of explorer William Clark, after he visited the Epsom Derby in England and the Grand Prix de Paris in France and returned determined to found an American race of similar prestige.
A man handicapping a horse race

What does “underlay against” mean and why is it important in thoroughbred horse race handicapping?

In horse race handicapping, "underlay against" refers to a situation where a horse is considered overbet by the public, meaning its odds are lower than its true probability of winning—essentially, the horse is being bet down too much, often due to popularity, recent wins, or connections, rather than its actual chances in the race. When a horse is an underlay, the risk of betting on it is higher than the potential reward, because the payout does not reflect the horse's real likelihood of winning.​