On 18 October 2026, B. Vignesh (India) ran their 400 metres hurdles in 51.33 seconds at Jaipur (India Championships U23).
| 18.51 |
| 8.88 |
13 R |
R |
| H5 | 4.24(+0.30) | 22.75 | 8.25 | 14 L | L |
| H6 | 4.28(+0.04) | 27.03 | 8.18 | 14 R | R |
| H7 | 4.50(+0.22) | 31.53 | 7.78 | 14 L | L |
| H8 | 4.76(+0.26) | 36.29 | 7.35 | 15 L | L |
| H9 | 4.68(-0.08) | 40.97 | 7.48 | 15 L | L |
| H10 | 4.96(+0.28) | 45.93 | 7.06 | 15 L | L |
| Finish | 5.40 | 51.33 | 7.41 | — — | — |
Avg. interval
4.38s
Std. deviation
0.35
Deceleration
Stride pattern
Fastest interval: 3.92s (H2–H3).
Excellent fatigue resistance: only 7.5% speed loss between the first and second halves (8.13 → 7.52 m/s).
Stutter on H8, H9.
Lead leg alternation: 6× Left, 4× Right.