On 9 June 2017, Bruno Bertogal (France) ran their 400 metres hurdles in 50.78 seconds at Albi (France Championships). It's also their new personal best.
| 18.34 |
| 8.41 |
14 L |
L |
| H5 | 4.32(+0.16) | 22.66 | 8.10 | 14 R | R |
| H6 | 4.44(+0.12) | 27.10 | 7.88 | 15 R | R |
| H7 | 4.52(+0.08) | 31.62 | 7.74 | 15 R | R |
| H8 | 4.60(+0.08) | 36.22 | 7.61 | 15 R | R |
| H9 | 4.56(-0.04) | 40.78 | 7.68 | 15 R | R |
| H10 | 4.60(+0.04) | 45.38 | 7.61 | 15 R | R |
| Finish | 5.40 | 50.78 | 7.41 | — — | — |
Avg. interval
4.35s
Std. deviation
0.25
Deceleration
Stride pattern
New personal best!
Very consistent intervals (σ=0.25s).
Fastest interval: 3.92s (H2–H3).
Excellent fatigue resistance: only 6.3% speed loss between the first and second halves (8.16 → 7.65 m/s).
Steady stride pattern.
Lead leg alternation: 2× Left, 8× Right.