| Sectors | Splits | Cumulative | Strides | Lead leg |
|---|---|---|---|---|
| Start - H1 | 6.42 | 6.42 | 23 | D |
| H2 | 4.00 | 10.42 | 15 | D |
| H3 | 4.12(+0.12) | 14.54 | 15 | D |
| H4 | 4.24(+0.12) | 18.78 | 15 | D |
| H5 | 4.32(+0.08) | 23.10 | 15 | D |
| H6 | 4.44(+0.12) | 27.54 | 15 | D |
| H7 | 4.52(+0.08) | 32.06 | 15 | D |
| H8 | 4.68(+0.16) | 36.74 | 15 | D |
| H9 | 4.76(+0.08) | 41.50 | 15 | D |
| H10 | 5.08(+0.32) | 46.58 | 16 | G |
| Finish | 5.72 | 52.30 | — | — |
Total time
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.
Stride count and lead leg, hurdle by hurdle
Percentile position, sector by sector
Faster than 91% of 400m hurdles Elite-level.
Actual percentile: 91
n = 122 races · 58 athletes
Position within the pacing-consistency distribution (a higher value isn't necessarily a better race).
Position within the speed-loss distribution between the two race halves (a low value isn't always better pacing).
Hurdle fault rate, compared to the database.
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 4% World ranking.
This performance is the slovakia record.