On 4 October 2019, Dalilah Muhammad (United States) ran their 400 metres hurdles in 52.16 seconds at Doha (World Championships).
On 4h/world, this time earns Dalilah a Top 3% World ranking.
| 18.44 |
| 8.33 |
15 R |
R |
| H5 | 4.40(+0.20) | 22.84 | 7.95 | 15 R | R |
| H6 | 4.44(+0.04) | 27.28 | 7.88 | 15 R | R |
| H7 | 4.44(0.00) | 31.72 | 7.88 | 15 R | R |
| H8 | 4.68(+0.24) | 36.40 | 7.48 | 15 R | R |
| H9 | 4.84(+0.16) | 41.24 | 7.23 | 16 L | L |
| H10 | 5.00(+0.16) | 46.24 | 7.00 | 16 R | R |
| Finish | 5.92 | 52.16 | 6.76 | — — | — |
Avg. interval
4.45s
Std. deviation
0.33
Deceleration
Stride pattern
Fastest interval: 3.92s (H2–H3).
Excellent fatigue resistance: only 9.5% speed loss between the first and second halves (8.1 → 7.33 m/s).
Steady stride pattern.
Lead leg alternation: 1× Left, 9× Right.
All-time fastest sectors
Max speed
8.93m/s
Avg speed
7.67m/s
Std. deviation
0.33s