| Sectors | Splits | Cumulative | Strides | Lead leg |
|---|---|---|---|---|
| Start - H1 | 6.47 | 6.47 | 23 | G |
| H2 | 4.33 | 10.80 | 16 | D |
| H3 | 4.30(-0.03) | 15.10 | 15 | D |
| H4 | 4.37(+0.07) | 19.47 | 15 | D |
| H5 | 4.63(+0.26) | 24.10 | 16 | G |
| H6 | 4.77(+0.14) | 28.87 | 16 | D |
| H7 | 4.83(+0.06) | 33.70 | 16 | G |
| H8 | 5.03(+0.20) | 38.73 | 17 | G |
| H9 | 5.20(+0.17) | 43.93 | 17 | G |
| H10 | 5.23(+0.03) | 49.16 | 17 | G |
| Finish | 5.99 | 55.15 | — | — |
Total time
Avg. interval
4.74s
Std. deviation
0.34
Deceleration
Stride pattern
Fastest interval: 4.3s (H3–H4).
Excellent fatigue resistance: only 9.8% speed loss between the first and second halves (7.68 → 6.92 m/s).
Stutter on H8.
Lead leg alternation: 6× Left, 4× Right.
Stride count and lead leg, hurdle by hurdle
Percentile position, sector by sector
Faster than 22% of 400m hurdles Elite-level.
Actual percentile: 22
n = 122 races · 58 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 12 July 2026, Grace Claxton (Puerto Rico) ran their 400 metres hurdles in 55.15 seconds at Edmonton (Edmonton Meeting).
The closest performance recorded on 4h/world belongs to Bianca Stubler (55.14s at Edmonton), with 0.01 seconds away.