| Sectors | Splits | Cumulative | Strides | Lead leg |
|---|---|---|---|---|
| Start - H1 | 6.28 | 6.28 | 23 | G |
| H2 | 4.34 | 10.62 | 15 | G |
| H3 | 4.28(-0.06) | 14.90 | 15 | G |
| H4 | 4.38(+0.10) | 19.28 | 15 | G |
| H5 | 4.64(+0.26) | 23.92 | 16 | D |
| H6 | 4.81(+0.17) | 28.73 | 16 | G |
| H7 | 4.84(+0.03) | 33.57 | 16 | D |
| H8 | 5.21(+0.37) | 38.78 | 17 | D |
| H9 | 5.21(0.00) | 43.99 | 17 | D |
| H10 | 5.21(0.00) | 49.20 | 17 | D |
| Finish | 5.94 | 55.14 | — | — |
Total time
Avg. interval
4.77s
Std. deviation
0.36
Deceleration
Stride pattern
New personal best!
Fastest interval: 4.28s (H3–H4).
Deceleration of 11% between the first half (7.73 m/s) and the second half (6.89 m/s).
Steady stride pattern.
Lead leg alternation: 5× Left, 5× Right.
Stride count and lead leg, hurdle by hurdle
Percentile position, sector by sector
Faster than 24% of 400m hurdles Elite-level.
Actual percentile: 24
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 28 June 2026, Grace Claxton (Puerto Rico) ran their 400 metres hurdles in 55.14 seconds at Medellín (Others). It's also their new personal best.
The closest performance recorded on 4h/world belongs to Bianca Stubler (55.14s at Edmonton), with 0.00 seconds away.