Progress against the field
Adam Grinsell has dropped 4:40 behind the field from London 2024 to Birmingham 2026.
The clock says 5:50 faster, but the races themselves got 10:30 quicker for everyone.
283 days between Manchester 2026 and Birmingham 2026 is the longest gap compared here, and the second race was 6:23 behind 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
11 races · 10 events
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Birmingham31 Oct 2026Individual Open · Men1:20:14161/359Beat 55%
↑ 283 days after Manchester 2026 6:23 worse than the field Why ↓Close ↑
6:23 behind the field: 2:39 slower on the clock, against 3:44 faster for everyone.
The fieldCompare these two →3:44 faster This athlete2:39 slower -
Cardiff29 Apr 2026Doubles Open · Men1:03:2482/478Beat 83%
↑ 168 days after Dublin 2025, with Ben Need 2:33 worse than the field Why ↓Close ↑
2:33 behind the field: 1:16 slower on the clock, against 1:17 faster for everyone.
The fieldCompare these two →1:17 faster This pair1:16 slower -
Manchester21 Jan 2026Individual Open · Men1:17:35512/1463Beat 65%
↑ 263 days after London 2025 0:17 worse than the field Why ↓Close ↑
0:31 slower on the clock in a race that was 0:14 slower for everyone: 0:17 lost to the field.
The fieldCompare these two →0:14 slower This athlete0:31 slower -
Dublin12 Nov 2025Doubles Open · Men1:02:08 PB84/777Beat 89%
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Birmingham22 Oct 2025Doubles Open · Mixed1:20:11 PB522/954Beat 45%
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Birmingham22 Oct 2025Relay · Men1:01:2321/54Beat 61%
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London3 May 2025Individual Open · Men1:17:04 PB672/1917Beat 65%
↑ 99 days after Manchester 2025 3:19 better than the field Why ↓Close ↑
3:19 better than the field: 7:59 faster on the clock, against 4:40 faster for everyone.
The fieldCompare these two →4:40 faster This athlete7:59 faster -
Copenhagen14 Mar 2025Doubles Open · Men1:03:03139/736Beat 81%
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Manchester24 Jan 2025Individual Open · Men1:25:03671/1191Beat 44%
↑ 56 days after London 2024 1:19 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:01 faster on the clock looks better than it was: the race was 2:20 faster for everyone, which leaves this 1:19 behind the field.
The fieldCompare these two →2:20 faster This athlete1:01 faster -
London29 Nov 2024Individual Open · Men1:26:04824/1637Beat 50%
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Birmingham25 Oct 2024Relay · Mixed1:20:0020/40Beat 50%