Progress against the field
From Birmingham 2024 to London Excel 2025, Jack Halpin got 2:21 faster than the field.
Over the same races everyone got 8:53 quicker, so 11:14 faster on the clock looks better than it was.
267 days between Glasgow 2025 and London Excel 2025 is the longest gap compared here, and the second race was 2:17 better than 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
5 races · 4 events
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London Excel4 Dec 2025Doubles Open · Mixed1:21:35 PB786/1372Beat 43%
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London Excel4 Dec 2025Individual Open · Men1:06:29 PB191/2771Beat 93%
↑ 267 days after Glasgow 2025 2:17 better than the field Why ↓Close ↑
2:17 better than the field: 5:49 faster on the clock, against 3:32 faster for everyone.
The fieldCompare these two →3:32 faster This athlete5:49 faster -
Glasgow12 Mar 2025Individual Open · Men1:12:18331/1445Beat 77%
↑ 138 days after Birmingham 2024 0:04 better than the field Why ↓Close ↑
5:25 faster on the clock, and the race was 5:21 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →5:21 faster This athlete5:25 faster -
Manchester24 Jan 2025Individual Pro · Men1:40:33 PB174/196Beat 11%
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Birmingham25 Oct 2024Individual Open · Men1:17:43233/816Beat 71%