How Can Impact Values Help in Finding Horse Racing Winners?
There are two ways to use impact values. You can either look for positive features to determine if a horse is worth backing, or negative features when trying to eliminate horses. But you should not look at the impact value figure in isolation. You should examine both the impact value and the ROI% figure. A strong positive value for both of them is what you need to find as this indicates a group of horses who are winning more races than they should, and are going of at prices higer than they should. Looking again at the 2yo maidens who were 2nd last time, they may have an impact value of 3.00 but a level stake bet on all of them would have made a 10% loss. In 4yo+ long distance (12f or more) Handicaps on the all weather, Colts have an impact value of 1.84 and have also returned a profit of 32%. These are the kind of positive stats you should be looking out for.
