| Sectors | Splits | Cumulative | Strides | Lead leg |
|---|---|---|---|---|
| Start - H1 | 5.82 | 5.82 | 20 | D |
| H2 | 3.51 | 9.33 | 13 | D |
| H3 | 3.55(+0.04) | 12.88 | 12 | G |
| H4 | 3.59(+0.04) | 16.47 | 12 | D |
| H5 | 3.83(+0.24) | 20.30 | 13 | D |
| H6 | 3.87(+0.04) | 24.17 | 13 | D |
| H7 | 3.87(0.00) | 28.04 | 13 | D |
| H8 | 4.03(+0.16) | 32.07 | 13 | D |
| H9 | 4.22(+0.19) | 36.29 | 13 | D |
| H10 | 4.67(+0.45) | 40.96 | 14 | G |
| Finish | 5.55 | 46.51 | — | — |
Total time
Avg. interval
3.90s
Std. deviation
0.35
Deceleration
Stride pattern
Fastest interval: 3.51s (H2–H3).
Excellent fatigue resistance: only 10% speed loss between the first and second halves (9.11 → 8.2 m/s).
Steady stride pattern.
Hurdle fault on H10.
Lead leg alternation: 2× Left, 8× Right.
Stride count and lead leg, hurdle by hurdle
Percentile position, sector by sector
Faster than 96% of 400m hurdles Elite-level.
Actual percentile: 96
n = 148 races · 76 athletes
Position within the pacing-consistency distribution (a higher value isn't necessarily a better race).
Position within the speed-loss distribution between the two race halves (a low value isn't always better pacing).
Hurdle fault rate, compared to the database.
On 18 August 2025, Benjamin Rai (United States) ran their 400 metres hurdles in 46.51 seconds at Tokyo (World Championships).
On 4h/world, this time earns Benjamin a Top 2% World ranking.