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Speed figures translate subjective opinions into objective measurement. That single sentence explains why they matter more than most form factors you will encounter. When you look at a racecard and try to decide whether Horse A is better than Horse B, you are making a comparison. But finishing positions alone cannot support that comparison honestly. A horse that won a Class 5 at Wolverhampton by a neck and a horse that won a Group 3 at Ascot by a neck both show a “1” in their form. Speed figures are the tool that tells you the two wins are not remotely equivalent.
The practical impact is measurable. According to analysis by Caan Berry, horses running below the class par — the minimum speed figure typically required to win at a given level — manage a win rate of roughly 4 percent in handicaps. That is barely better than random selection. By contrast, horses with the top speed figure in a race win approximately 35 percent of the time. The gap between those two numbers is the gap between guessing and analysing.
UK racing offers several competing speed figure systems, each with its own methodology and quirks. Understanding what they measure, how they differ and where they overlap is the foundation for using them well. As Phil Bull, the founder of Timeform, put it: a time will not necessarily tell you how good a horse is, but it will tell you how bad it is not.
The three dominant speed figure systems in UK racing are the Racing Post Rating (RPR), the Topspeed figure published by Sporting Life (formerly the Racing Post’s own supplement), and the Timeform rating. All three attempt to quantify how fast a horse ran, adjusted for conditions, but they use different methods to get there — and the differences matter when you are comparing figures across systems.
RPR is the most widely referenced figure in UK racing because it appears on the most widely used platform. Each horse receives a rating after every run, expressed as a number where higher is better. RPR uses race times as a starting point but adjusts for factors including going, wind, track configuration and weight carried. It also factors in finishing margins, which means a horse can earn a high RPR without posting the fastest raw time if it won easily under a penalty or in testing ground.
The main advantage of RPR is accessibility. It is published free on the Racing Post website and appears on most racecard providers. Its main limitation is that it is a blended figure — part time-based, part performance-based — which makes it less precise than a pure speed rating when you are trying to isolate how fast a horse actually ran from point A to point B.
Topspeed figures are pure time-based ratings. They measure how fast a horse covered the distance, adjusted for going and track conditions, and express the result as a figure relative to a standard. Topspeed does not incorporate finishing margins or weight carried in its core calculation, which makes it a cleaner measure of raw speed but less informative about the effort a horse put in to achieve that speed.
The practical difference is this: if two horses finish close together in a slow-run race, their Topspeed figures will be similar because the times were similar. Their RPRs might diverge because the Racing Post handicapper judged one to have more in hand. Topspeed tells you what happened on the clock. RPR tells you what the handicapper thinks happened in the race.
Timeform ratings are the gold standard in UK form analysis, and they carry a price tag to match. Founded by Phil Bull in 1948, Timeform combines time-based analysis with expert assessment to produce a rating that reflects a horse’s overall ability rather than just its speed in a single race. Timeform ratings are expressed on a scale where higher is better, with figures above 140 reserved for exceptional Group 1 performers.
What distinguishes Timeform from RPR and Topspeed is the depth of its methodology. Timeform employs a team of analysts who watch races, assess visual impression and factor in elements like trouble in running, unsuitable pace and poor positioning that time alone cannot capture. A horse that finished fourth after being badly hampered might receive a Timeform rating higher than the winner if the analysts judge it would have won in a clear run. This makes Timeform the most subjective of the three systems, but also — in the hands of experienced users — the most nuanced.
For most punters, the practical approach is to use RPR as a default (it is free and widely available), cross-reference with Topspeed for races where raw time is particularly informative (sprints on fast ground, for example), and consult Timeform when the stakes justify the subscription cost. No single system is always right, but any one of them is better than no speed figure at all.
Class par is the concept that separates casual users of speed figures from those who extract genuine value from them. The idea is simple: every class of race has a typical winning speed figure, and horses that consistently fall below that figure are unlikely to win at that level. The execution is what makes it powerful.
In a Class 4 handicap over a mile on good ground, for instance, the class par might be an RPR of 80. Horses that have been posting figures of 72, 74, 76 in recent runs are running below par for the grade. They may be competitive enough to fill minor places, but their speed figures tell you they are not producing the level of performance that typically wins this type of race. That 4 percent win rate for horses below class par — derived from analysis of handicap results — is the statistical evidence that class par works as a filter.
Conversely, a horse that has been posting figures of 84, 86, 82 in races at a lower class and is now stepping up to Class 4 is running above the par for its new level. This horse is not guaranteed to win, but the speed figures confirm it has the raw ability to be competitive. Combined with other factors — suitable going, a good draw, an in-form trainer — above-par figures significantly increase your confidence in a selection.
Finding the class par for a given race requires a bit of work. Racing Post publishes RPR figures for all UK races, and over time you can build your own reference table of typical winning figures by class and distance. Alternatively, services like Timeform and Proform publish class pars directly. The numbers shift slightly from season to season and vary by distance and going, but the principle is stable: if a horse cannot produce a figure in the ballpark of the class par, it is swimming against the tide.
The crucial point about class par is that it works in both directions. It is not just a tool for eliminating no-hopers. It also helps you identify horses that are well-in at the weights — those whose best speed figure is significantly above the class par, suggesting they are running in a grade below their ability. These are often horses that have been dropped in class after a series of defeats at a higher level, or improving types whose recent figures have not yet been reflected in their official handicap mark.
Speed figures work best when you apply them systematically rather than glancing at them as an afterthought. Three practical applications will cover most of what you need.
Filtering. Before you read form in detail, use class par to eliminate horses whose recent speed figures fall well below the level required. In a 12-runner handicap, this alone might remove four or five runners from serious consideration, saving you time and focusing your attention on genuine contenders. The filter does not need to be rigid — a horse running one or two points below par might still have a chance if other factors are strongly in its favour — but it should be your default starting point.
Ranking. Once you have filtered out the sub-par runners, rank the remaining horses by their best recent speed figure. “Recent” means the last three to five runs, weighted towards the most recent. A horse whose last three RPRs are 88, 85, 90 is a different proposition from one showing 90, 78, 80. The first is consistent near a high level; the second produced one good run and two ordinary ones. Consistency at or above class par is a more reliable indicator than a single peak figure surrounded by mediocrity.
Cross-referencing. Speed figures gain power when you combine them with other data. A horse with the top speed figure in the race, drawn well, with a course-and-distance record on today’s going, trained by a handler in form — that convergence of factors is what serious form study produces. Speed figures provide the foundation; the other elements provide the confirmation. Conversely, a horse with a strong speed figure but a poor draw on unsuitable going is a case where one positive indicator is undermined by two negatives.
One common mistake is to compare speed figures across different going conditions without adjustment. A horse that posted an RPR of 92 on Good to Firm in July is not necessarily 6lb better than one that posted 86 on Heavy in December. Soft and heavy ground suppress speed figures because horses run slower, so the comparison is not like-for-like. When the going changes significantly between a horse’s best figure and today’s conditions, treat the figure with extra caution and look for evidence that the horse handles the new surface.
Speed figures are not a magic formula. They are a starting point — the most objective starting point you have — and the punters who use them as a foundation for deeper analysis consistently outperform those who skip them in favour of hunches, tips or superficial form reading.