| Sectors | Splits | Cumulative | Strides | Lead leg |
|---|---|---|---|---|
| Start - H1 | 5.74 | 5.74 | 20 | G |
| H2 | 3.52 | 9.26 | 13 | G |
| H3 | 3.58(+0.06) | 12.84 | 12 | D |
| H4 | 3.62(+0.04) | 16.46 | 12 | G |
| H5 | 3.71(+0.09) | 20.17 | 12 | D |
| H6 | 3.81(+0.10) | 23.98 | 12 | G |
| H7 | 4.05(+0.24) | 28.03 | 13 | G |
| H8 | 4.03(-0.02) | 32.06 | 13 | G |
| H9 | 4.23(+0.20) | 36.29 | 13 | G |
| H10 | 4.45(+0.22) | 40.74 | 13 | G |
| Finish | 5.06 | 45.80 | — | — |
Total time
Avg. interval
3.89s
Std. deviation
0.30
Deceleration
Stride pattern
New personal best!
New national record!
New area record!
World record performance!
Very consistent intervals (σ=0.3s).
Fastest interval: 3.52s (H2–H3).
Excellent fatigue resistance: only 8.5% speed loss between the first and second halves (9.17 → 8.39 m/s).
Steady stride pattern.
Lead leg alternation: 8× Left, 2× Right.
Stride count and lead leg, hurdle by hurdle
Percentile position, sector by sector
Faster than 100% of 400m hurdles Elite-level.
Actual percentile: 100
n = 155 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 27 August 2026, Alison Dos Santos (Brazil) ran their 400 metres hurdles in 45.80 seconds at Zürich (Diamond League).
On 4h/world, this time earns Alison a Top 1 World ranking.
This performance is the records: