My Prosperous World

The Kentucky Derby takes place every year on its traditional date of the first Saturday in May. This is a race that many people follow and try to handicap even if theyre not typically horse racing enthusiasts. Understanding race horses is hard work, and a discipline unto itself.

Despite the complexity of understanding horse racing, there are a few basic rules that can help the novice watch the Kentucky Derby with a greater degree of enjoyment. Until recently, the Derby was a race dominated by the favorite. In the 1970’s great horses like Secretariat and Seattle Slew blew away the field but since Spectacular Bid’s winning run in 1979 there have been only a couple of favorites to win the big race. While a serious horse player might not want to categorically dismiss the popular favorite, for the horse racing novice this is a helpful way to narrow down the field.

In all fairness, it should be noted that the favorite has been a historically strong proposition. In the 135 Kentucky Derby races the post time favorite has placed in the money at a 69% clip over the history of the race. So why have the favorites been on such a money losing run in the past two decades? My personal theory is that it is a function of the growing hype surrounding the race”in other words, you get a lot of amateur horse racing fans that distort the notion of the favorite being the most likely to win the race. The most hyped horse becomes the favorite, but this is not always the best horse. In any case, though it could be argued that the anti-favorite bias could be due for a turnaround, for the purpose of understanding this particular race Im going to forget about the post time favorite.

Another important component of Kentucky derby success is the post position of the horses. The innermost positions (1 through 5) have produced over 40% of all Derby winners, while the outer post positions (11 through 20) have had only 13% winners. Note that in some years there might not be that many horses in the race, which would help partially explain the poor performance of the outer start positions. Still, for the purposes of understanding a single race eliminating all of the less favorable start positions is a good idea.

A couple more factors to consider are the horse’s gender and breeding lineage. A couple of simple rules can be applied here–first of all, forget all horses that aren’t intact males (geldings and fillies). Over 90% of all Derby winners have been intact males. Then, eliminate any horse that wasn’t born in the state of Kentucky. This stipulation is starting to change, but for the time being is a good rule to apply for the novice. Over 80% of all Derby winners have been born in Kentucky.

Don’t forget to consider dosage index numbers. These are a complex mathematical formula that measures a horse’s breeding lineage plus his past performance. You want to look for horses with a dosage index of 4.00 or less–over half of Derby winners have met this criteria since dosage numbers came into common usage in the mid 1980’s.

For a more serious introduction to horse racing, check out the many books available on the subject at any large bookstore. For a casual fan who just follows the ‘big races’ these rules will help you get a decent grasp on the Kentucky Derby and understand who will win and why.

Ross Everett is a freelance sports writer specializing in casino gambling, surfing and sports betting. He has appeared on a number of TV and radio programs offering strategies for successful NFL football betting. He lives in the Nevada desert with three Jack Russell Terriers and a pet llama. He is currently writing a biography of former NFL quarterback Jim Plunkett.