On 11 July 2026, Xinfeng Xu (China) ran their 400 metres hurdles in 48.68 seconds at Ordos (Asia Championships U23).
On 4h/world, this time earns Xinfeng a Top 30% World ranking.
This performance is the china record.
| 17.80 |
| 9.00 |
13 L |
L |
| H5 | 4.04(+0.15) | 21.84 | 8.66 | 14 R | R |
| H6 | 4.14(+0.10) | 25.98 | 8.45 | 14 L | L |
| H7 | 4.17(+0.03) | 30.15 | 8.39 | 15 L | L |
| H8 | 4.39(+0.22) | 34.54 | 7.97 | 15 L | L |
| H9 | 4.43(+0.04) | 38.97 | 7.90 | 15 L | L |
| H10 | 4.58(+0.15) | 43.55 | 7.64 | 15 L | L |
| Finish | 5.13 | 48.68 | 7.80 | — — | — |
Avg. interval
4.18s
Std. deviation
0.24
Deceleration
Stride pattern
New personal best!
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Very consistent intervals (σ=0.24s).
Fastest interval: 3.8s (H2–H3).
Very low deceleration (5.4%: 8.47 → 8.01 m/s), a likely sign of an over-managed first half.
Stutter on H7.
Lead leg alternation: 9× Left, 1× Right.