TrackMaster Horse Ratings Specification

TrackMaster Horse Ratings are an averaging of a horse's recent best past performances as described in detail below. To be included in the list, a horse must have raced in North America in the last 2 years. In order for a rating to be computed, a horse must be at least 3 years old and have at least 4 lifetime starts. The ratings range from 0.00 to 99.99

**To calculate a TrackMaster Horse Rating, the following algorithm is used:**

- First, gather all of the horse's past performaces with speed ratings within two years of its last race of any kind
- ("10-Line Past Performances") TrackMaster Past Performances
- ("12-Line Platinum Past Performances") TrackMaster Platinum Past Performances
- ("Lifetime Past Performances") TrackMaster Lifetime Past Performances
- Next, eliminate races with any kind of break, broken equipment, interference, inside pylons, etc
- Of the remaining races, consider no more than the 8 most recent speed ratings and separate into two categories...
- ("Recent Ratings") speed ratings within 150 days of its last race
- ("Past Ratings") speed ratings that are >150 days and <= 2 years since its last race

- ("Recent Ratings")
- if 7 or 8, average the highest 4
- if 5 or 6, average the highest 3
- if just 4, average the highest 2

- ("Recent Ratings")
- If 3, average the highest 2 - then weight @ 70%
- If 1 or 2, use the higher 1 - then weight @ 50%
- If 0, use 0 - then weight @ 2.5% (Note: this will result in taking 97.5% of "Past Ratings")
- ("Past Ratings")
- If 7 or 8, average the highest 4 - then weight @ 1 - "Recent Ratings" weight
- If 5 or 6, average the highest 3 - then weight @ 1 - "Recent Ratings" weight
- If 3 or 4, average the highest 2 - then weight @ 1 - "Recent Ratings" weight
- If 1 or 2, use the higher 1- then weight @ 1 - "Recent Ratings" weight
- If 0, use 0 and the horse will not get a rating

* Speed ratings for races where the horse was < 4 years old are "age adjusted" using a special formula

*NOTE: Horse rating reports are updated daily at 5:00 AM PT*