On 4 September 2026, Emma Zapletalova (Slovakia) ran their 400 metres hurdles in 53.10 seconds at Bruxelles (Diamond League).
On 4h/world, this time earns Emma a Top 11% World ranking.
| 18.81 |
| 8.33 |
15 R |
R |
| H5 | 4.27(+0.07) | 23.08 | 8.20 | 15 R | R |
| H6 | 4.40(+0.13) | 27.48 | 7.95 | 15 R | R |
| H7 | 4.63(+0.23) | 32.11 | 7.56 | 15 R | R |
| H8 | 4.80(+0.17) | 36.91 | 7.29 | 15 R | R |
| H9 | 4.97(+0.17) | 41.88 | 7.04 | 15 R | R |
| H10 | 5.23(+0.26) | 47.11 | 6.69 | 16 L | L |
| Finish | 5.99 | 53.10 | 6.68 | — — | — |
Avg. interval
4.51s
Std. deviation
0.40
Deceleration
Stride pattern
Fastest interval: 4.03s (H3–H4).
Deceleration of 10.7% between the first half (8.02 m/s) and the second half (7.16 m/s).
Steady stride pattern.
Lead leg alternation: 1× Left, 9× Right.
All-time fastest sectors