| Sectors | Splits | Cumulative | Strides | Lead leg |
|---|---|---|---|---|
| Start - H1 | 6.53 | 6.53 | 23 | G |
| H2 | 4.34 | 10.87 | 15 | G |
| H3 | 4.53(+0.19) | 15.40 | 15 | G |
| H4 | 4.60(+0.07) | 20.00 | 15 | G |
| H5 | 4.70(+0.10) | 24.70 | 16 | D |
| H6 | 4.93(+0.23) | 29.63 | 16 | G |
| H7 | 5.12(+0.19) | 34.75 | 17 | G |
| H8 | 5.33(+0.21) | 40.08 | 17 | G |
| H9 | 5.18(-0.15) | 45.26 | — | — |
| H10 | 5.24(+0.06) | 50.50 | — | G |
| Finish | 5.98 | 56.48 | — | — |
Total time
Avg. interval
4.89s
Std. deviation
0.33
Deceleration
Stride pattern
Fastest interval: 4.34s (H2–H3).
Excellent fatigue resistance: only 9.7% speed loss between the first and second halves (7.49 → 6.77 m/s).
Lead leg alternation: 8× Left, 1× Right.
Stride count and lead leg, hurdle by hurdle
Percentile position, sector by sector
Faster than 78% of 400m hurdles Intermediate-level.
Actual percentile: 78
n = 60 races · 51 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 26 July 2026, Riley Knebes (United States) ran their 400 metres hurdles in 56.48 seconds at New York (United States Championships).
The closest performance recorded on 4h/world belongs to Brooke Overholt (56.53s at Ottawa), with 0.05 seconds away.
Data source: https://results.usatf.org/2026Outdoors/?mid=9056&en=20-2