On 19 June 2026, Emma Zapletalova (Slovakia) ran their 400 metres hurdles in 52.30 seconds at Doha (Diamond League).
On 4h/world, this time earns Emma a Top 3% World ranking.
This performance is the slovakia record.
| 18.78 |
| 8.25 |
15 R |
R |
| H5 | 4.32(+0.08) | 23.10 | 8.10 | 15 R | R |
| H6 | 4.44(+0.12) | 27.54 | 7.88 | 15 R | R |
| H7 | 4.52(+0.08) | 32.06 | 7.74 | 15 R | R |
| H8 | 4.68(+0.16) | 36.74 | 7.48 | 15 R | R |
| H9 | 4.76(+0.08) | 41.50 | 7.35 | 15 R | R |
| H10 | 5.08(+0.32) | 46.58 | 6.89 | 16 L | L |
| Finish | 5.72 | 52.30 | 6.99 | — — | — |
Avg. interval
4.46s
Std. deviation
0.32
Deceleration
Stride pattern
New personal best!
New national record!
Fastest interval: 4s (H2–H3).
Excellent fatigue resistance: only 8.1% speed loss between the first and second halves (8.01 → 7.36 m/s).
Steady stride pattern.
Lead leg alternation: 1× Left, 9× Right.
All-time fastest sectors
All-time slowest sectors