The Kentucky Derby takes place every year on the first Saturday in May, and its a race that many horse racing novices like to follow. Along with the Breeders’ Cup and the other ‘Triple Crown’ races, the Derby attracts the most mainstream attention. Understanding the intricacies of horse racing is a very involved study.

While understanding and predicting horse races is a very complex discipline, here are some basics that can help the amateur understand the Kentucky Derby. Back during the seventies, it was a race dominated by the favorite including three great Triple Crown winners–Secretariat, Seattle Slew and Affirmed–and a great horse that came close, Spectacular Bid. Since Spectacular Bid won the Derby in 1979, however, you can count the favorites who’ve won the race on one hand with fingers left over. If I was a serious horseplayer, I might not advise you to do this but since I’m just worried about predicting the outcome of this one race Im going to suggest that you forget about the favorite altogether. Not only will you not be flying in the face of recent history, but also it allows you to concentrate on the horses offering greater value.

So why has the favorite done so poorly in recent years? One theory suggests that it is a by-product of the hype surrounding the race. Novice horse fans back the favorite, making it more of a popularity contest than anything else. The reality is that the horse with the most hype is not always the best horse.

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.

Another factor worthy of consideration is the horses lineage and breeding. Start at the beginning”where the horse was born. Most, but not all, serious racehorses are born in Kentucky. If you see a horse in the race that wasnt, forget them. This is not any sort of home field advantage but a result of the concentration of the Thoroughbred horse industry in the state. Over 80% of Kentucky Derby winners have been born in Kentucky. Next, consider the horses gender, or more specifically dont consider any entry with a gender other than male. Only eleven horses other than intact males have ever won the race (eight geldings and three fillies). A gelding did win as recently as 2003, when Funny Cide took the roses but again for the newcomer this is an easy way to cut down the horses under consideration. This isnt a gender bias or anything, but for our purposes we can forget about non-male horses.

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.

These are just a few steps that will serve you well if you dont know much about horses. Again, if you want to take a more serious approach to understanding horse racing you should look into the many books dedicated to the subject. For a recreational horse race enthusiast, however, these basic rules are helpful in trying to predict the Derby winner.

Ross Everett is a freelance sports writer and respected authority on World Cup betting. His writing has appeared on a variety of sports sites including sports news and sportsbook directory sites. He lives in Las Vegas with three Jack Russell Terriers and a kangaroo. He is currently working on an autobiography of former interior secretary James Watt.