Progress against the field
Between Osaka 2026 and Chiba 2026, Akiko Mori and Motoko Arai lost 3:20 to the field.
Over the same races everyone got 9:14 quicker, so 5:54 faster 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
4 races · 4 events
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Chiba6 Aug 2026Doubles Open · Women1:26:31 PB164/399Beat 59%
↑ 83 days after Incheon 2026, with Motoko Arai 0:28 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:20 faster on the clock looks better than it was: the race was 1:48 faster for everyone, which leaves this 0:28 behind the field.
The fieldCompare these two →1:48 faster This pair1:20 faster -
Incheon15 May 2026Doubles Open · Women1:27:51379/646Beat 41%
↑ 105 days after Osaka 2026, with Motoko Arai 2:52 worse than the field Faster on the clock, behind the field Why ↓Close ↑
4:34 faster on the clock, yet the race was 7:26 faster for everyone, so 2:52 was lost on the field.
The fieldCompare these two →7:26 faster This pair4:34 faster -
Osaka30 Jan 2026Doubles Open · Women1:32:25155/310Beat 50%
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Yokohama9 Aug 2025Doubles Open · Women1:40:31126/176Beat 28%