On 22 July 2022, Femke Broeders-Bol (Netherlands) ran their 400 metres hurdles in 52.27 seconds at Eugene (World Championships).
On 4h/world, this time earns Femke a Top 3% World ranking.
| 18.73 |
| 8.27 |
15 L |
L |
| H5 | 4.37(+0.14) | 23.10 | 8.01 | 15 L | L |
| H6 | 4.46(+0.09) | 27.56 | 7.85 | 15 L | L |
| H7 | 4.61(+0.15) | 32.17 | 7.59 | 15 L | L |
| H8 | 4.67(+0.06) | 36.84 | 7.49 | 15 L | L |
| H9 | 4.83(+0.16) | 41.67 | 7.25 | 15 L | L |
| H10 | 4.87(+0.04) | 46.54 | 7.19 | 15 L | L |
| Finish | 5.73 | 52.27 | 6.98 | — — | — |
Avg. interval
4.46s
Std. deviation
0.29
Deceleration
Stride pattern
Very consistent intervals (σ=0.29s).
Fastest interval: 4.03s (H2–H3).
Excellent fatigue resistance: only 8% speed loss between the first and second halves (8.01 → 7.37 m/s).
Steady stride pattern.
Max speed
8.68m/s
Avg speed
7.65m/s
Std. deviation
0.29s