On 19 September 2025, Femke Broeders-Bol (Netherlands) ran their 400 metres hurdles in 51.54 seconds at Tokyo (World Championships).
On 4h/world, this time earns Femke a Top 1% World ranking.
| 18.49 |
| 8.43 |
14 L |
L |
| H5 | 4.27(+0.12) | 22.76 | 8.20 | 14 R | R |
| H6 | 4.39(+0.12) | 27.15 | 7.97 | 14 L | L |
| H7 | 4.47(+0.08) | 31.62 | 7.83 | 15 L | L |
| H8 | 4.63(+0.16) | 36.25 | 7.56 | 15 L | L |
| H9 | 4.79(+0.16) | 41.04 | 7.31 | 15 L | L |
| H10 | 4.95(+0.16) | 45.99 | 7.07 | 15 L | L |
| Finish | 5.55 | 51.54 | 7.21 | — — | — |
Avg. interval
4.40s
Std. deviation
0.33
Deceleration
Stride pattern
Fastest interval: 3.91s (H2–H3).
Excellent fatigue resistance: only 8.1% speed loss between the first and second halves (8.13 → 7.47 m/s).
Steady stride pattern.
Lead leg alternation: 7× Left, 3× Right.
All-time fastest sectors
Max speed
8.95m/s
Avg speed
7.76m/s
Std. deviation
0.33s