Saturday's speed figures: Wolfie's Dynaghost leads top 10
Wolfie's Dynaghost led all performers with a 141 Horse Racing Nation speed figure at Gulfstream Park in the Ft. Lauderdale Stakes. The 7-year-old gelding by Ghostzapper captured the 1 1/8-mile turf stakes at 4-5 odds. This marked his 14th career victory in his 32nd start.
Post Time earned a 139 HRN speed figure at Laurel Park in the Robert T. Manfuso Stakes. The 5-year-old horse by Frosted won the 1 1/16-mile dirt stakes at 2-5 odds, recording his 13th career win from 23 starts.
Slam Notion completed the top three with a 137 HRN speed figure at Laurel Park in the Howard and Sondra Bender Memorial Stakes. The 3-year-old gelding by Great Notion scored at 7-2 odds in a dominant win by three lengths, securing his seventh career victory from 12 starts.
Saturday's top 10 speed figures
| HRN | Horse | Sire | Age | Race | Distance |
|---|---|---|---|---|---|
| 141 | Wolfie's Dynaghost | Ghostzapper | 7 g | GP 11 | 1 1/8 turf |
| 139 | Post Time | Frosted | 5 h | LRL 8 | 1 1/16 dirt |
| 137 | Slam Notion | Great Notion | 3 g | LRL 5 | 7f dirt |
| 132 | Takethemoneyhoney | Golden Lad | 4 f | LRL 7 | 6f dirt |
| 128 | Rattle N Roll | Connect | 6 h | OP 8 | 1 1/8 dirt |
| 127 | Freeze the Fire | Friesan Fire | 5 g | LRL 4 | 6f dirt |
| 125 | Gold Sweep | Speightstown | 4 c | OP 9 | 6f dirt |
| 125 | Lips Say Bliss | Cairo Prince | 5 g | OP 9 | 6f dirt |
| 124 | Intrepid's Legacy | Imagining | 4 g | LRL 2 | 7f dirt |
| 123 | Not This Boy | Not This Time | 4 g | FG 8 | 1 1/16 dirt |
Fastest maiden winners
Sockdolager posted the day's highest maiden winner figure with a 119 HRN speed figure at Fair Grounds. The 2-year-old colt by Gun Runner won a six-furlong dirt maiden special weight at 9-2 odds in a dominant win by 5 3/4 lengths for his first career victory. He is out of Snowy Winter, a Grade 1-placed daughter of Elusive Quality who earned $176,000.
Golden Tempo impressed with a 111 HRN figure at Fair Grounds in his debut. The 2-year-old colt by Curlin captured a six-furlong dirt maiden special weight at 5-2 odds. His dam Carrumba, a Grade 3 winner by Bernardini, earned $622,000 during her racing career.
Sam the Sham earned a 108 HRN figure at Gulfstream Park in his fourth career start. The 3-year-old colt by American Pharoah broke his maiden in a five-furlong synthetic race at 6-1 odds. He is out of Beauty Parlor, a Grade 3 winner by Elusive Quality who earned $209,000, and his top sibling Blackout Time is Grade 1-placed and has earned $211,000.
Saturday's top maiden winners
| HRN | Horse | Sire | Age | Race | Distance |
|---|---|---|---|---|---|
| 119 | Sockdolager | Gun Runner | 2 c | FG 6 | 6f dirt |
| 111 | Golden Tempo | Curlin | 2 c | FG 3 | 6f dirt |
| 108 | Sam the Sham | American Pharoah | 3 c | GP 4 | 5f synthetic |
| 107 | Awesome Andy | Spun to Run | 2 c | LRL 3 | 7f dirt |
| 106 | White Smoke | Essential Quality | 2 f | FG 4 | 6f dirt |
| 104 | Lady Iva | Uncle Mo | 3 f | FG 5 | 1 1/16 turf |
| 103 | Thunder Buck | Gun Runner | 2 c | FG 12 | 1 1/16 dirt |
| 102 | Aces Honor | Code of Honor | 2 c | FG 7 | 1 mile turf |
| 101 | Big Red Machine | Runhappy | 2 f | OP 3 | 6f dirt |
| 101 | Glamorama | Justify | 3 f | TP 5 | 1 1/16 synthetic |
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.