Progress against the field
David Thomas has dropped 14:32 behind the field from Cologne 2025 to Birmingham 2026.
Over the same races everyone got 10:01 quicker, so 4:31 slower on the clock looks better than it was.
The longest gap between two races compared here, 185 days between Cardiff 2026 and Birmingham 2026, cost 7:53 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.
Every race
10 races · 9 events
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Birmingham31 Oct 2026Individual Open · Men1:28:12396/646Beat 39%
↑ 185 days after Cardiff 2026 7:53 worse than the field Why ↓Close ↑
6:10 slower on the clock in a race that was 1:43 faster for everyone: 7:53 lost to the field.
The fieldCompare these two →1:43 faster This athlete6:10 slower -
Birmingham31 Oct 2026Individual Open · Men1:21:22310/677Beat 54%
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Barcelona14 May 2026Doubles Pro · Men1:16:07 PB333/434Beat 23%
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Cardiff29 Apr 2026Individual Open · Men1:22:02401/913Beat 56%
↑ 13 days after Warsaw 2026 1:42 better than the field Why ↓Close ↑
0:26 faster on the clock in a race that was 1:16 slower for everyone: 1:42 better than the field.
The fieldCompare these two →1:16 slower This athlete0:26 faster -
Warsaw16 Apr 2026Individual Open · Men1:22:28285/555Beat 49%
↑ 36 days after Glasgow 2026 3:52 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:20 faster on the clock looks better than it was: the race was 4:12 faster for everyone, which leaves this 3:52 behind the field.
The fieldCompare these two →4:12 faster This athlete0:20 faster -
Glasgow11 Mar 2026Individual Open · Men1:22:48689/1452Beat 53%
↑ 140 days after Birmingham 2025 0:07 better than the field Why ↓Close ↑
2:34 faster on the clock, and the race was 2:27 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →2:27 faster This athlete2:34 faster -
Birmingham22 Oct 2025Individual Open · Men1:25:22935/1821Beat 49%
↑ 145 days after Cardiff 2025 3:44 worse than the field Why ↓Close ↑
1:08 slower on the clock in a race that was 2:36 faster for everyone: 3:44 lost to the field.
The fieldCompare these two →2:36 faster This athlete1:08 slower -
Cardiff30 May 2025Individual Open · Men1:24:14342/639Beat 47%
↑ 14 days after Berlin 2025 0:56 worse than the field Why ↓Close ↑
4:11 slower on the clock in a race that was 3:15 slower for everyone: 0:56 lost to the field.
The fieldCompare these two →3:15 slower This athlete4:11 slower -
Berlin16 May 2025Individual Open · Men1:20:03 PB420/748Beat 44%
↑ 36 days after Cologne 2025 0:04 better than the field Why ↓Close ↑
3:38 faster on the clock, and the race was 3:34 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →3:34 faster This athlete3:38 faster -
Cologne10 Apr 2025Individual Open · Men1:23:41518/1182Beat 56%