Progress against the field
Between Osaka 2026 and Chiba 2026, Wai Sum Tin lost 5:05 to the field.
The clock says 4:11 slower, but the races themselves got 0:54 quicker for everyone.
The biggest step was Hong Kong 2026 → Chiba 2026: 18:08 on the field in 90 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.
Every race
4 races · 4 events
-
Chiba6 Aug 2026Individual Open · Men1:51:47562/769Beat 27%
↑ 90 days after Hong Kong 2026 18:08 better than the field Why ↓Close ↑
19:03 faster on the clock, and the race was 0:55 faster for everyone, so 18:08 of it was this athlete.
The fieldCompare these two →0:55 faster This athlete19:03 faster -
Hong Kong8 May 2026Individual Open · Men2:10:501348/1490Beat 10%
↑ 98 days after Osaka 2026 23:13 worse than the field Why ↓Close ↑
23:14 slower on the clock in a race that was 0:01 slower for everyone: 23:13 lost to the field.
The fieldCompare these two →0:01 slower This athlete23:14 slower -
Osaka30 Jan 2026Individual Open · Men1:47:36 PB375/511Beat 27%
-
Shenzhen20 Dec 2025Doubles Open · Mixed1:38:03 PB381/539Beat 29%