I'm not trying to be a 'shill' here but what you're doing is basically what Jim Mazur and the folks at Progressive Handicapping do on a regular basis for their Breeders Cup products. I have purchased some of the info about every 4 years to see what the common factors are that identify which horses have the characteristics to run big in each of the races. While each year and race stand on their own, it is interesting to see the common thread that may help you catch a price or two. Usually you only need to hit one race to help make a profit for the weekend. Obviously they don't have as much 'history' on some of the newer races but they are building trends on those too.
Website is
www.proghandicap.com if you're interested.