Speed ratings reduce the complexity of horse racing to a single number. They allow you to compare a horse that won at Kempton last Tuesday with one that ran at York three weeks ago on a standardised scale.
The Major Rating Systems
Timeform Ratings
The most respected rating system in horse racing. Founded in 1948, Timeform uses a proprietary methodology that adjusts for:
- Going conditions
- Weight carried
- Race pace
- Wind speed and direction
- Course characteristics
Scale reference:
- 145+ — All-time great (Frankel 147)
- 130-144 — Champion class
- 115-129 — Group race calibre
- 100-114 — Listed/decent handicap class
- 85-99 — Moderate handicapper
- Below 85 — Below-average ability
Racing Post Ratings (RPR)
More accessible than Timeform and available free on Racing Post race cards. RPR is updated after every run and provides a running assessment of each horse's ability.
RPR operates on a similar numerical scale to Timeform but the figures are not directly interchangeable. A Timeform 120 does not equal RPR 120.
Official BHA Ratings
The British Horseracing Authority assigns official ratings that directly determine handicap weights. A horse rated 95 in a 0-100 handicap carries top weight, while a horse rated 80 carries 15 pounds less.
How to Use Ratings in Practice
Compare Top-Rated Horses
In any race, sort the runners by their highest recent rating. The horse with the highest figure has demonstrated the most ability. However, this is a starting point, not the answer — going, distance, and fitness all mediate the translation from rating to result.
Look for Improving Profiles
A horse whose ratings read 85, 89, 93, 97 over successive runs is clearly improving. This upward trajectory suggests further improvement is likely, especially in a younger horse. The market often underestimates improving types.
Identify Course-Specific Ratings
A horse may rate 95 overall but 105 at a specific course. Course-specific ratings can reveal hidden ability that general figures mask. Filter by course and distance for the most relevant comparison.
Rating Traps to Avoid
Stale Ratings
A rating achieved six months ago on different going at a different distance is less relevant than a modest rating from last week in similar conditions to today's race.
Class Ceilings
Some horses consistently hit a rating ceiling. A horse rated 100 that has run to exactly 98-102 in its last eight runs is unlikely to suddenly jump to 110.
Combining Ratings with Other Factors
The most effective approach uses ratings as a framework, then adjusts for:
- Today's going (does it suit the horse?)
- Draw position (especially in flat handicaps)
- Jockey and trainer form
- Market confidence (is smart money supporting or opposing the top-rated horse?)