Progress against the field
Between Shanghai 2025 and Hangzhou 2026, 建封 任 pulled 2:51 ahead of the field.
Over the same races everyone got 3:27 quicker, so 6:18 faster on the clock looks better than it was.
The largest gain on the field came from Shanghai 2025 → Shenzhen 2025: 3:49 in 28 days.
How this is worked out ⓘ
A finish time moves for two reasons: the athlete, and the race — its course, its floor, its day. For each pair of races in a row in one category, we take everyone who raced both and use the middle of how much they moved (the median) as "the race". Whatever is left is the athlete. Doubles are compared only when the same two people raced both, and told as the pair's; relays are left out. A pair with fewer than 15 athletes in common is not shown.
Every race
6 races · 6 events
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Beijing10 Sep 2026Individual Pro · MenDNF—
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Hangzhou4 Jul 2026Individual Pro · Men1:21:5340/182Beat 78%
↑ 105 days after Beijing I 2026 1:20 worse than the field Why ↓Close ↑
1:20 behind the field: 1:47 slower on the clock, against 0:27 slower for everyone.
The fieldCompare these two →0:27 slower This athlete1:47 slower -
Beijing I21 Mar 2026Individual Pro · Men1:20:06 PB65/275Beat 76%
↑ 91 days after Shenzhen 2025 0:22 better than the field Why ↓Close ↑
4:47 faster on the clock, and the race was 4:25 faster for everyone, so 0:22 of it was this athlete.
The fieldCompare these two →4:25 faster This athlete4:47 faster -
Shenzhen20 Dec 2025Individual Pro · Men1:24:5382/285Beat 71%
↑ 28 days after Shanghai 2025 3:49 better than the field Why ↓Close ↑
The race was 0:31 slower for everyone and the clock still says 3:18 faster: 3:49 gained on the field.
The fieldCompare these two →0:31 slower This athlete3:18 faster -
Shanghai22 Nov 2025Individual Pro · Men1:28:11107/227Beat 53%
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Beijing23 Aug 2025Individual Open · Men1:20:23 PB108/609Beat 82%