Progress against the field
Between Yokohama 2025 and Bangkok 2026, Tomoko Kobayashi lost 12:35 to the field.
Over the same races everyone got 9:32 quicker, so 3:03 slower on the clock looks better than it was.
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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Bangkok13 Aug 2026Individual Open · Women1:19:0825/1066Beat 98%
↑ 97 days after Hong Kong 2026 5:55 worse than the field Why ↓Close ↑
3:16 slower on the clock in a race that was 2:39 faster for everyone: 5:55 lost to the field.
The fieldCompare these two →2:39 faster This athlete3:16 slower -
Hong Kong8 May 2026Individual Open · Women1:15:52 PB11/429Beat 97%
↑ 49 days after Bangkok 1 2026 0:59 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:08 faster on the clock looks better than it was: the race was 2:07 faster for everyone, which leaves this 0:59 behind the field.
The fieldCompare these two →2:07 faster This athlete1:08 faster -
Bangkok 120 Mar 2026Individual Open · Women1:17:0036/1260Beat 97%
↑ 49 days after Osaka 2026 1:36 worse than the field Why ↓Close ↑
1:36 behind the field: 0:13 slower on the clock, against 1:23 faster for everyone.
The fieldCompare these two →1:23 faster This athlete0:13 slower -
Osaka30 Jan 2026Individual Open · Women1:16:4727/619Beat 96%
↑ 174 days after Yokohama 2025 4:05 worse than the field Why ↓Close ↑
4:05 behind the field: 0:42 slower on the clock, against 3:23 faster for everyone.
The fieldCompare these two →3:23 faster This athlete0:42 slower -
Yokohama9 Aug 2025Individual Open · Women1:16:0512/304Beat 96%
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Singapore ExpoDate unknownIndividual Open · Women1:16:2018/596Beat 97%