Progress against the field
Hongjiu zhang has gained 4:42 on the field from Las Vegas 2026 to Boston 2026.
Over the same races everyone got 5:10 quicker, so 9:52 faster on the clock looks better than it was.
The longest gap between two races compared here, 196 days between Houston 2026 and Boston 2026, still ended 14:07 ahead of the field.
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 · 3 events
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Boston8 Oct 2026Individual Open · Men1:27:16 PB472/1233Beat 62%
↑ 196 days after Houston 2026 14:07 better than the field Why ↓Close ↑
16:42 faster on the clock, and the race was 2:35 faster for everyone, so 14:07 of it was this athlete.
The fieldCompare these two →2:35 faster This athlete16:42 faster -
Boston8 Oct 2026Doubles Open · Men1:31:49 PB320/459Beat 30%
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Houston26 Mar 2026Individual Open · Men1:43:58418/653Beat 36%
↑ 34 days after Las Vegas 2026 9:25 worse than the field Why ↓Close ↑
6:50 slower on the clock in a race that was 2:35 faster for everyone: 9:25 lost to the field.
The fieldCompare these two →2:35 faster This athlete6:50 slower -
Las Vegas20 Feb 2026Individual Open · Men1:37:081050/1739Beat 40%