| Sectors | Splits | Cumulative | Strides | Lead leg |
|---|---|---|---|---|
| Start - H1 | 6.03 | 6.03 | 21 | D |
| H2 | 3.90 | 9.93 | 14 | G |
| H3 | 4.00(+0.10) | 13.93 | 14 | D |
| H4 | 4.13(+0.13) | 18.06 | 14 | G |
| H5 | 4.17(+0.04) | 22.23 | 14 | D |
| H6 | 4.43(+0.26) | 26.66 | 14 | G |
| H7 | 4.40(-0.03) | 31.06 | 14 | D |
| H8 | 4.57(+0.17) | 35.63 | 14 | G |
| H9 | 4.67(+0.10) | 40.30 | 15 | G |
| H10 | 4.73(+0.06) | 45.03 | 15 | G |
| Finish | 5.18 | 50.21 | — | — |
Total time
Avg. interval
4.33s
Std. deviation
0.28
Deceleration
Stride pattern
Very consistent intervals (σ=0.28s).
Fastest interval: 3.9s (H2–H3).
Excellent fatigue resistance: only 7.7% speed loss between the first and second halves (8.32 → 7.68 m/s).
Steady stride pattern.
Hurdle fault on H9.
Lead leg alternation: 6× Left, 4× Right.
Stride count and lead leg, hurdle by hurdle
Percentile position, sector by sector
Faster than 90% of Intermediate-level races.
n = 51 races
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 11 July 2026, Romario Stewart (Jamaica) ran their 400 metres hurdles in 50.21 seconds at Tlaxcala (North America Championships U23).