| Sectors | Splits | Cumulative | Strides | Lead leg |
|---|---|---|---|---|
| Start - H1 | 5.97 | 5.97 | 21 | D |
| H2 | 3.90 | 9.87 | 13 | D |
| H3 | 3.91(+0.01) | 13.78 | 13 | D |
| H4 | 4.02(+0.11) | 17.80 | 13 | D |
| H5 | 4.05(+0.03) | 21.85 | 13 | D |
| H6 | 4.29(+0.24) | 26.14 | 14 | G |
| H7 | 4.43(+0.14) | 30.57 | 14 | D |
| H8 | 4.66(+0.23) | 35.23 | 15 | D |
| H9 | 4.48(-0.18) | 39.71 | 15 | D |
| H10 | 4.66(+0.18) | 44.37 | 15 | D |
| Finish | 5.11 | 49.48 | — | — |
Total time
Avg. interval
4.27s
Std. deviation
0.29
Deceleration
Stride pattern
Very consistent intervals (σ=0.29s).
Fastest interval: 3.9s (H2–H3).
Excellent fatigue resistance: only 8.1% speed loss between the first and second halves (8.47 → 7.78 m/s).
Steady stride pattern.
Lead leg alternation: 1× Left, 9× Right.
Stride count and lead leg, hurdle by hurdle
Percentile position, sector by sector
Faster than 5% of Elite-level races.
n = 105 races
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 26 July 2026, Jevon Williams (United States) ran their 400 metres hurdles in 49.48 seconds at New York (United States Championships).
Source: https://results.usatf.org