SPEED PARS

[twmills]

Can anyone tell me the pars that Top Speed of the Racing Post use

[BillyHills]

Not sure what you mean by 'pars' but the Racing Post standard times are on their website.

 

How Does The Racing Post Calculate Its Topspeed Ratings?

The official line from the Racing Post is that a mature horse carrying 9 stone with a rating of 100 has the ability to meet Racing Post Standard Time in a race that is ‘truly run’ on ‘good’ going. All distances are proportioned back to 5 furlongs and the ratings are calculated on the basis that 1 second at 5 furlongs = 22 pounds.

For National Hunt races, the scenario changes to a mature horse carrying 12 stone with a rating of 135. In this case, 1 second at 2 miles = 6 pounds. Let’s make this a bit clearer with an example using data taken directly from the Racing Post for a Flat race (I’m making up a name of a horse here):

Gentle Ben is a 3 year-old running in a 7 furlong race at Lingfield’s All-Weather track. His weight is 9st 7 pounds and he finishes second 2.5 lengths behind the winner who clocked a winning time of 1 minute 25.99 seconds (85.99 seconds). The Racing Post Standard time for this particular race is 1m 24.20 (84.20 seconds) so the winner was 1.79 seconds slower than standard time.

In this instance, the RP makes a ‘Going Correction’ of 0.24 seconds per furlong. Using the above information, the Racing Post comes up with a Topspeed rating of 59 for Gentle Ben which is achieved with the following set of data:

• Race Distance (D): 7 furlongs which is 1,540 yards (1 furlong is 220 yards; 7 x 220 = 1540).
• Time of Winner (T): 99 seconds.
• Beaten Distance (B): 5. One length is defined as being 3 yards; as Gentle Ben was defeated by 2.5 lengths, he was beaten by 7.5 yards in total (2.5 x 3 = 7.5).
• Total Distance Covered (D2)[For Gentle Ben]: 5 yards. This is because he was beaten by 7.5 yards so he covered 1532.5 yards in 85.99 seconds.
• Speed (S): 82 seconds. This is calculated by dividing the Distance Covered and Time (1532.5/85.99).
• Time Behind Winner (T2): 0.42 seconds. This is calculated by dividing the Beaten Distance and the Speed (7.5/17.82).
• Comparison to Standard Time [C]: +2.21 seconds. This is calculated by adding the Time Behind Winner to the amount of time the winner was outside the RP Standard time mentioned above (0.42 + 1.79).
• Adjusted Comparison (A): +1.58 seconds. Remember, Topspeed ratings are adjusted to 5 furlongs or 1,100 yards. This means we multiply 1,100 by the Comparison to Standard Time and divide it by the actual Race Distance of 7 furlongs or 1,540 yards so (1,100 x 2.21 = 2,431/1,540 = 1.58 when rounded up).
• Going Correction (G): 24 seconds per furlong as mentioned above.
• G2: +2.78 seconds. This is the Going Correction adjusted for 5 furlongs which means 5 x Going Correction + the Adjusted Comparison (5 x 0.24 = 1.2 + 1.58 = 2.78).
• Pounds Equivalent of G2 (P): 16. Again, remember that in Flat races, distances get proportioned back to 5 furlongs and 1 second at 5f equals 22 pounds. Therefore, this figure is achieved by multiplying 22 by the G2 figure of 2.78 so it is (22 x 2.78 = 61.16).
• Weight Adjustment (W): -7. We simply subtract Gentle Ben’s race weight (9 stone 7) from the standard 9 stone figure used by the Racing Post so (126-133 = -7).
• Rating [R]: The formula used by the Racing Post here is (100-W-P + 13 wfa). Wfa stands for Weight for Allowance and is normally less generous to immature horses than the official scale. The 100 figure is of course the stock rating used by the RP for Topspeed so 100-W-P = (100 + 7 – 61.16 (because of the double negative) = 45.84 + 13 = 58.84; this is then rounded up to 59 which is Gentle Ben’s Topspeed rating.

Formula For Flat Races: 100-W + wfa – 22(1100C/D + 5G)

Formula For National Hunt Races: 135-W – 6(3520C/D + 16G). Note that there is no Weight For Allowance for jump race calculations.