Progress against the field
From Hong Kong 2024 to Incheon 2026, Fumio Kusano got 11:47 faster than the field.
The clock says 25:31 faster, but the races themselves got 13:44 quicker for everyone.
The longest gap between two races compared here, 260 days between Hong Kong 2024 and Yokohama 2025, still ended 5:30 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
5 races · 5 events
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Chiba6 Aug 2026Individual Open · MenDNF—
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Incheon15 May 2026Individual Open · Men1:22:31 PB307/905Beat 66%
↑ 105 days after Osaka 2026 0:03 better than the field Why ↓Close ↑
2:35 faster on the clock, and the race was 2:32 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →2:32 faster This athlete2:35 faster -
Osaka30 Jan 2026Individual Open · Men1:25:06346/1119Beat 69%
↑ 174 days after Yokohama 2025 6:14 better than the field Why ↓Close ↑
10:34 faster on the clock, and the race was 4:20 faster for everyone, so 6:14 of it was this athlete.
The fieldCompare these two →4:20 faster This athlete10:34 faster -
Yokohama9 Aug 2025Individual Open · Men1:35:40375/718Beat 48%
↑ 260 days after Hong Kong 2024 5:30 better than the field Why ↓Close ↑
12:22 faster on the clock, and the race was 6:52 faster for everyone, so 5:30 of it was this athlete.
The fieldCompare these two →6:52 faster This athlete12:22 faster -
Hong Kong22 Nov 2024Individual Open · Men1:48:02779/1011Beat 23%