Progress against the field
Between Glasgow 2023 and Birmingham 2025, Andrew Tsang lost 10:40 to the field.
Over the same races everyone got 4:38 quicker, so 6:02 slower on the clock looks better than it was.
The longest gap between two races compared here, 732 days between Birmingham 2023 and Birmingham 2025, cost 12:50 on the field.
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
3 races · 3 events
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Birmingham22 Oct 2025Individual Open · Men1:31:351218/1821Beat 33%
↑ 732 days after Birmingham 2023 12:50 worse than the field Why ↓Close ↑
12:50 behind the field: 6:26 slower on the clock, against 6:24 faster for everyone.
The fieldCompare these two →6:24 faster This athlete6:26 slower -
Birmingham21 Oct 2023Individual Open · Men1:25:09 PB501/1182Beat 58%
↑ 252 days after Glasgow 2023 2:10 better than the field Why ↓Close ↑
0:24 faster on the clock in a race that was 1:46 slower for everyone: 2:10 better than the field.
The fieldCompare these two →1:46 slower This athlete0:24 faster -
Glasgow11 Feb 2023Individual Open · Men1:25:33510/974Beat 48%