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Although the Breeders’ Cup is nipping at its heels, without a doubt the Kentucky Derby is the biggest horse race of the year in the United States. This is a race that attracts many fans from the general public that typically don’t follow horse racing. A thorough understanding of horse racing, and which horses will win and why is a complex discipline that requires extensive specialized knowledge.

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.

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.

Post position is also something that the horse racing neophyte should pay attention to. Obviously post position number 1 is an advantage relative to the outer ones, but it hasnt been a strong edge over the other inside positions. Twelve Derby winners have had the #1 position going into the race (the most of any position) but positions #4 and #5 have had ten winners each. In terms of percentages, positions #1 through #5 have yielded 49 winners (or just under 40%). On the other hand, the outermost positions (#11 through #20) have had just 16 winners (or just under 13%). It is important to note that theres not always that many horses in the race, which would obviously result in few higher posts winning. Still, concentrating on horses with favorable post positions is another way to pare down a field that you know little about.

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.

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 who has written on sports gambling and how to successfully bet on NFL football. He has appeared on TV and radio talking about boxing, cricket and NFL pointspreads. He lives in Las Vegas with three Jack Russell Terriers and a lynx.