On 10 August 2017, Dalilah Muhammad (United States) ran their 400 metres hurdles in 53.50 seconds at Londres (World Championships).
On 4h/world, this time earns Dalilah a Top 14% World ranking.
| 18.53 |
| 8.18 |
15 R |
R |
| H5 | 4.40(+0.12) | 22.93 | 7.95 | 15 R | R |
| H6 | 4.40(0.00) | 27.33 | 7.95 | 15 R | R |
| H7 | 4.68(+0.28) | 32.01 | 7.48 | 15 R | R |
| H8 | 5.04(+0.36) | 37.05 | 6.94 | 16 L | L |
| H9 | 5.00(-0.04) | 42.05 | 7.00 | 16 R | R |
| H10 | 5.28(+0.28) | 47.33 | 6.63 | 16 L | L |
| Finish | 6.17 | 53.50 | 6.48 | — — | — |
Avg. interval
4.58s
Std. deviation
0.42
Deceleration
Stride pattern
Fastest interval: 3.96s (H2–H3).
Deceleration of 12.8% between the first half (8.07 m/s) and the second half (7.03 m/s).
Steady stride pattern.
Lead leg alternation: 2× Left, 8× Right.
All-time fastest sectors
All-time slowest sectors
Max speed
8.84m/s
Avg speed
7.48m/s
Std. deviation
0.42s