Progress against the field
Between Vancouver 2025 and Boston 2026, Sunli Guo pulled 6:14 ahead of the field.
The clock says 10:04 faster, but the races themselves got 3:50 quicker for everyone.
The largest gain on the field came from New York 2026 → Boston 2026: 3:27 in 133 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
4 races · 4 events
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Boston8 Oct 2026Individual Open · Men1:20:53 PB59/250Beat 76%
↑ 133 days after New York 2026 3:27 better than the field Why ↓Close ↑
4:50 faster on the clock, and the race was 1:23 faster for everyone, so 3:27 of it was this athlete.
The fieldCompare these two →1:23 faster This athlete4:50 faster -
New York28 May 2026Individual Open · Men1:25:43147/556Beat 74%
↑ 159 days after Vancouver 2025 2:47 better than the field Why ↓Close ↑
5:14 faster on the clock, and the race was 2:27 faster for everyone, so 2:47 of it was this athlete.
The fieldCompare these two →2:27 faster This athlete5:14 faster -
Vancouver20 Dec 2025Individual Open · Men1:30:57648/1427Beat 55%
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Valencia17 Oct 2025Doubles Open · Men1:16:16 PB182/319Beat 43%