Progress against the field
From Hong Kong 2025 to Beijing 2025, Chun Hong Lam got 28:44 faster than the field.
Over the same races everyone got 3:31 quicker, so 32:15 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
2 races · 2 events
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Beijing23 Aug 2025Individual Open · Men1:23:26 PB153/609Beat 75%
↑ 28 days after Hong Kong 2025 28:44 better than the field Why ↓Close ↑
28:44 better than the field: 32:15 faster on the clock, against 3:31 faster for everyone.
The fieldCompare these two →3:31 faster This athlete32:15 faster -
Hong Kong26 Jul 2025Individual Open · Men1:55:41926/1186Beat 22%