Progress against the field
From Berlin 2025 to Dublin 2025, the field gained 3:32 on Denise Jackson.
The races themselves barely changed, so 3:07 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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
7 races · 7 events
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Tenerife4 Sep 2026Individual Open · Women1:41:1390/146Beat 38%
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Dublin12 Nov 2025Individual Open · Women1:33:30345/539Beat 36%
↑ 180 days after Berlin 2025 3:32 worse than the field Why ↓Close ↑
3:32 behind the field: 3:07 slower on the clock, against 0:25 faster for everyone.
The fieldCompare these two →0:25 faster This athlete3:07 slower -
Berlin16 May 2025Individual Open · Women1:30:23 PB351/590Beat 41%
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Manchester24 Jan 2025Individual Open · Women1:34:44293/539Beat 46%
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Amsterdam10 Oct 2024Individual Open · Women1:37:11383/678Beat 44%
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Glasgow2 Mar 2024Individual Open · Women1:42:59576/816Beat 29%
↑ 385 days after Glasgow 2023 13:44 better than the field Why ↓Close ↑
13:39 faster on the clock in a race that was 0:05 slower for everyone: 13:44 better than the field.
The fieldCompare these two →0:05 slower This athlete13:39 faster -
Glasgow11 Feb 2023Individual Open · Women1:56:38413/442Beat 7%