On 4 August 2021, Femke Broeders-Bol (Netherlands) ran their 400 metres hurdles in 52.03 seconds at Tokyo (Olympic Games).
On 4h/world, this time earns Femke a Top 3% World ranking.
This performance is the europe record U23.
| 18.43 |
| 8.58 |
15 L |
L |
| H5 | 4.20(+0.12) | 22.63 | 8.33 | 15 L | L |
| H6 | 4.40(+0.20) | 27.03 | 7.95 | 15 L | L |
| H7 | 4.64(+0.24) | 31.67 | 7.54 | 15 L | L |
| H8 | 4.68(+0.04) | 36.35 | 7.48 | 15 L | L |
| H9 | 4.88(+0.20) | 41.23 | 7.17 | 15 L | L |
| H10 | 5.00(+0.12) | 46.23 | 7.00 | 15 L | L |
| Finish | 5.80 | 52.03 | 6.90 | — — | — |
Avg. interval
4.43s
Std. deviation
0.37
Deceleration
Stride pattern
Fastest interval: 3.96s (H2–H3).
Deceleration of 10.5% between the first half (8.17 m/s) and the second half (7.31 m/s).
Steady stride pattern.
Max speed
8.84m/s
Avg speed
7.69m/s
Std. deviation
0.37s