Progress against the field
From Seoul 2025 to Chiba 2026, the field gained 4:47 on Kazunari Yamamoto and Daichi Yoshino.
Over the same races everyone got 9:30 quicker, so 4:43 faster on the clock looks better than it was.
The biggest step was Osaka 2026 → Incheon 2026: 2:11 on the field in 105 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. The summary above covers Doubles Open · Men, with Daichi Yoshino, the one raced most; every comparison is in the list below.
Every race
10 races · 6 events
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Chiba6 Aug 2026Relay · Men1:02:5619/105Beat 82%
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Chiba6 Aug 2026Doubles Open · Men1:00:2416/468Beat 97%
↑ 83 days after Incheon 2026, with Daichi Yoshino 3:43 worse than the field Why ↓Close ↑
1:14 slower on the clock in a race that was 2:29 faster for everyone: 3:43 lost to the field.
The fieldCompare these two →2:29 faster This pair1:14 slower -
Incheon15 May 2026Doubles Open · Men59:10 PB31/1114Beat 97%
↑ 105 days after Osaka 2026, with Daichi Yoshino 2:11 better than the field Why ↓Close ↑
2:11 better than the field: 8:21 faster on the clock, against 6:10 faster for everyone.
The fieldCompare these two →6:10 faster This pair8:21 faster -
Incheon15 May 2026Individual Open · Men1:19:05 PB230/905Beat 75%
↑ 105 days after Osaka 2026 1:15 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:17 faster on the clock, yet the race was 2:32 faster for everyone, so 1:15 was lost on the field.
The fieldCompare these two →2:32 faster This athlete1:17 faster -
Osaka30 Jan 2026Relay · Mixed1:02:2712/124Beat 90%
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Osaka30 Jan 2026Individual Open · Men1:20:22240/1119Beat 79%
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Osaka30 Jan 2026Doubles Open · Men1:07:3180/748Beat 89%
↑ 83 days after Seoul 2025, with Daichi Yoshino 3:15 worse than the field Why ↓Close ↑
2:24 slower on the clock in a race that was 0:51 faster for everyone: 3:15 lost to the field.
The fieldCompare these two →0:51 faster This pair2:24 slower -
Seoul8 Nov 2025Doubles Open · Men1:05:07107/640Beat 83%
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Yokohama9 Aug 2025Doubles Open · Men1:08:4631/277Beat 89%
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Incheon17 May 2025Doubles Open · Men1:24:28341/469Beat 27%