Progress against the field
Between Birmingham 2025 and Glasgow 2026, Iain Jackson and Chris Kirk lost 4:15 to the field.
The races themselves barely changed, so 3:46 slower on the clock is the real picture.
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
12 races · 12 events
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Glasgow11 Mar 2026Doubles Pro · Men1:09:2950/66Beat 24%
↑ 49 days after Manchester 2026, with Chris Kirk 0:06 better than the field Why ↓Close ↑
Moved with the field: 1:04 faster on the clock, against 0:58 faster for everyone.
The fieldCompare these two →0:58 faster This pair1:04 faster -
Manchester21 Jan 2026Doubles Pro · Men1:10:3328/50Beat 44%
↑ 91 days after Birmingham 2025, with Chris Kirk 4:21 worse than the field Why ↓Close ↑
4:50 slower on the clock in a race that was 0:29 slower for everyone: 4:21 lost to the field.
The fieldCompare these two →0:29 slower This pair4:50 slower -
Poznan13 Dec 2025Doubles Pro · Men1:10:58108/157Beat 31%
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Madrid27 Nov 2025Individual Pro · Men1:33:08169/196Beat 14%
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Birmingham22 Oct 2025Doubles Pro · Men1:05:43 PB89/176Beat 49%
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Oslo26 Sep 2025Individual Pro · Men1:29:20 PB81/101Beat 20%
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Glasgow12 Mar 2025Individual Pro · MenDNF—
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Birmingham25 Oct 2024Individual Pro · MenDNF—
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Glasgow2 Mar 2024Doubles Pro · Men1:06:3542/122Beat 66%
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Katowice24 Feb 2024Doubles Open · Men1:04:30 PB18/96Beat 81%
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Birmingham15 Oct 2022Individual Pro · Men1:39:22123/137Beat 10%
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Manchester29 Jan 2022Individual Pro · MenDNF—