| Sectors | Splits | Cumulative | Strides | Lead leg |
|---|---|---|---|---|
| Start - H1 | 6.56 | 6.56 | 23 | D |
| H2 | 4.12 | 10.68 | 15 | D |
| H3 | 4.16(+0.04) | 14.84 | 15 | D |
| H4 | 4.20(+0.04) | 19.04 | 15 | D |
| H5 | 4.32(+0.12) | 23.36 | 15 | D |
| H6 | 4.52(+0.20) | 27.88 | 15 | D |
| H7 | 4.64(+0.12) | 32.52 | 15 | D |
| H8 | 4.84(+0.20) | 37.36 | 16 | G |
| H9 | 4.92(+0.08) | 42.28 | 16 | D |
| H10 | 5.12(+0.20) | 47.40 | 16 | G |
| Finish | 5.60 | 53.00 | — | — |
Total time
Avg. interval
4.54s
Std. deviation
0.34
Deceleration
Stride pattern
Fastest interval: 4.12s (H2–H3).
Excellent fatigue resistance: only 8.4% speed loss between the first and second halves (7.92 → 7.25 m/s).
Steady stride pattern.
Lead leg alternation: 2× Left, 8× Right.
Stride count and lead leg, hurdle by hurdle
Percentile position, sector by sector
Faster than 74% of 400m hurdles Elite-level.
Actual percentile: 74
n = 120 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 19 September 2025, Emma Zapletalova (Slovakia) ran their 400 metres hurdles in 53.00 seconds at Tokyo (World Championships).
On 4h/world, this time earns Emma a Top 12% World ranking.