Speed figures: Who ran the fastest on Saturday?
Cairo Surprise led all performers with a 140 Horse Racing Nation speed figure at Monmouth Park in the seventh race. The 3-year-old gelding by Cairo Prince captured a 5 1/2-furlong dirt allowance at 1-9 odds in a dominant win by 9 1/4 lengths. This marked his third career victory in his seventh start.
Sabertooth earned a 119 HRN speed figure at Santa Anita in a 1 1/8-mile turf allowance optional claimer. The 4-year-old colt by Grazen won at 8-5 odds, recording his second career win from 11 starts.
Little Teddy completed the top three with a 119 HRN speed figure at Woodbine in a five-furlong synthetic allowance optional claimer. The 5-year-old horse by Frac Daddy scored at 7-5 odds, securing his eighth career win from 16 starts.
Saturday's top 10 speed figures
| HRN | Horse | Sire | Age | Race | Distance |
|---|---|---|---|---|---|
| 140 | Cairo Surprise | Cairo Prince | 3G | MTH 7 | 5 1/2f dirt |
| 119 | Sabertooth | Grazen | 4C | SA 7 | 1 1/8 turf |
| 119 | Little Teddy | Frac Daddy | 5M | WO 8 | 5f syn |
| 118 | Home for a Rest | Souper Speedy | 5M | WO 7 | 5 1/2f syn |
| 118 | Irish Maxima | Maximus Mischief | 5M | BAQ 7 | 1 mile dirt |
| 117 | Skyro | Verrazano | 8G | CD 4 | 1 mile dirt |
| 116 | Growth Equity | Nyquist | 3C | BAQ 9 | 1 1/8 dirt |
| 115 | Ever Dangerous | Kitten's Joy | 9G | WO 9 | 1 1/16 syn |
| 114 | Mon Reve | Mitole | 3F | MTH 8 | 6f dirt |
| 114 | Doroteo | Bolt d'Oro | 4G | MTH 6 | 6f dirt |
Fastest maiden winners
Mon Reve posted the day's highest maiden winner figure with a 114 HRN speed figure at Monmouth Park in a dominant win by 8 1/4 lengths. The 3-year-old filly by Mitole captured a six-furlong dirt maiden special weight at 3-1 odds in her second career start. She is out of Spring Dance, a Dance With Ravens mare who earned $200,000, with her top sibling Bracket Buster winning a Grade 3 and earning $793,000.
Sammy C Note impressed with a 113 HRN figure at Belmont at Aqueduct in his sixth career start. The 4-year-old gelding by Good Samaritan won a six-furlong turf maiden special weight at 8-1 odds. His dam Bargaining Table by Brother Derek earned $401,000 during her racing career.
Velocita earned a 110 HRN speed figure at Woodbine in her third career start. The 3-year-old filly by Old Forester finished a five-furlong synthetic maiden optional claimer at 43-1 odds. Her dam High Tee by El Corredor earned $180,000.
Saturday's top maiden winners
| HRN | Horse | Sire | Age | Race | Distance |
|---|---|---|---|---|---|
| 114 | Mon Reve | Mitole | 3F | MTH 8 | 6f dirt |
| 113 | Sammy C Note | Good Samaritan | 4G | BAQ 11 | 6f turf |
| 110 | Velocita | Old Forester | 3F | WO 1 | 5f syn |
| 110 | Christa McAuliffe | Grazen | 3F | SA 6 | 6f dirt |
| 107 | Supercharger | Constitution | 3C | CD 5 | 1 1/8 turf |
| 106 | Tanya's Momentum | Uncle Mo | 3F | CD 11 | 7f dirt |
| 104 | Rochester | Street Sense | 3C | CD 6 | 6 1/2f dirt |
| 104 | Karley B | Girvin | 4F | BAQ 1 | 6f dirt |
| 102 | Confidentiality | Complexity | 3F | SA 3 | 6f turf |
| 100 | Clean Winner | Charlatan | 3F | MTH 4 | 6f dirt |
About HRN speed figures
HRN speed figures are AI-generated using HRN's proprietary machine-learning algorithms. Although they involve less human input than other speed figures, we see that as a plus as human adjustments often knock down surprisingly good performances to match expectations. HRN speed figures were launched in December 2024, and our expectation is also that the AI-generated speed figures will continuously get better over time.
The HRN speed figure scale goes from 1 to 160. Part of the reason for this higher scale is this helps us avoid assigning a speed figure of zero. For some products, in weaker races, half the field or more may get a speed figure of zero, which leads to inaccuracy and defeats the purpose of speed figures.
Because the HRN speed figures are based on machine learning, as we improve our models we can compute the numbers historically.
Using the top last-race speed figure as a benchmark, here are stats from 2021 to 2024 for HRN and other speed-figure providers:
Top HRN figure 26.2% winners
Top Beyer figure 28.1% winners
Top TimeformUS figure 28.4% winners
Although all HRN speed figures are published on individual horse profile pages on a weekly basis, the daily reports are focused on the top and medium-tier tracks, which represent the majority of top speed figures.
Note: For the fastest maiden winners mentioned, all dam and sibling earnings are based on North American starts only.