WASP Trainers

The single most important influence on a horse's performance is the trainer. Current stable form can help explain some of the strange race results we observe daily. To that end, WASP (Winners Above Starting Price), can help us stay current with how in-form trainers are on a rolling weekly, fortnightly, or monthly basis.

• Using historical database of past performances, calculate wins per starting-price using Juvenile Finish Position Ratings algorithm.
• For each yard:
  • For each race in past performances during period
    • Calculate number of actual wins using Juvenile Finish Position Ratings algorithm.
    • Calculate number of expected wins using wins per starting-price.
  • Sum over all races and calculate both actual and expected win percentages.
  • Subtract expected win percentage from actual win percentage to calculate WASP.

Note: Numbers for illustrative purposes only.

The calculated difference tells us (if positive) that the stable is ahead of the market in terms of percentage of opponents beaten or conversely (if negative) that the stable is behind the market.

Thus, WASP informs us of both current stable form and stable value in a single number.