Progress against the field
Between Hong Kong 2026 and Chiba 2026, Mami Yamasaki lost 18:33 to the field.
Over the same races everyone got 1:21 quicker, so 17:12 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
4 races · 3 events
-
Chiba6 Aug 2026Doubles Open · Mixed1:07:33 PB51/761Beat 93%
-
Chiba6 Aug 2026Individual Open · Women1:43:15367/589Beat 38%
↑ 90 days after Hong Kong 2026 18:33 worse than the field Why ↓Close ↑
18:33 behind the field: 17:12 slower on the clock, against 1:21 faster for everyone.
The fieldCompare these two →1:21 faster This athlete17:12 slower -
Hong Kong8 May 2026Individual Open · Women1:26:03 PB65/565Beat 89%
-
Osaka30 Jan 2026Relay · Women1:14:0412/74Beat 84%