Progress against the field
Mark Simpson has dropped 44:43 behind the field from London 2024 to Birmingham 2025.
The clock says 39:12 slower, but the races themselves got 5:31 quicker for everyone.
The longest gap between two races compared here, 271 days between Manchester 2025 and Birmingham 2025, cost 47:09 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
9 races · 7 events
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Birmingham31 Oct 2026Doubles Open · Men1:20:28800/1035Beat 23%
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Birmingham31 Oct 2026Doubles Open · Men58:53 PB35/605Beat 94%
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Tenerife4 Sep 2026Doubles Open · Mixed1:30:59 PB357/542Beat 34%
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Glasgow11 Mar 2026Doubles Open · Mixed1:41:16434/500Beat 13%
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London Excel4 Dec 2025Individual Pro · Men1:11:29 PB181/467Beat 61%
↑ 43 days after Birmingham 2025 0:29 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:26 faster on the clock, yet the race was 1:55 faster for everyone, so 0:29 was lost on the field.
The fieldCompare these two →1:55 faster This athlete1:26 faster -
Birmingham22 Oct 2025Individual Open · Men1:48:461413/1600Beat 12%
↑ 271 days after Manchester 2025 47:09 worse than the field Why ↓Close ↑
43:58 slower on the clock in a race that was 3:11 faster for everyone: 47:09 lost to the field.
The fieldCompare these two →3:11 faster This athlete43:58 slower -
Birmingham22 Oct 2025Individual Pro · Men1:12:5573/156Beat 53%
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Manchester24 Jan 2025Individual Open · Men1:04:48 PB70/1191Beat 94%
↑ 56 days after London 2024 2:26 better than the field Why ↓Close ↑
2:26 better than the field: 4:46 faster on the clock, against 2:20 faster for everyone.
The fieldCompare these two →2:20 faster This athlete4:46 faster -
London29 Nov 2024Individual Open · Men1:09:34153/1637Beat 91%