Progress against the field
Between Birmingham 2025 and Oslo 2026, Jason jones-williams pulled 2:53 ahead of the field.
Over the same races everyone got 5:04 quicker, so 7:57 faster on the clock looks better than it was.
The biggest step was Birmingham 2025 → Manchester 2026: 4:38 on the field in 91 days.
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
9 races · 8 events
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Birmingham31 Oct 2026Individual Pro · Men1:07:25 PB151/693Beat 78%
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Oslo26 Sep 2026Individual Open · Men1:00:0811/871Beat 99%
↑ 127 days after Berlin 2026 0:39 better than the field Why ↓Close ↑
0:30 faster on the clock in a race that was 0:09 slower for everyone: 0:39 better than the field.
The fieldCompare these two →0:09 slower This athlete0:30 faster -
Berlin22 May 2026Individual Open · Men1:00:387/1097Beat 99%
↑ 23 days after Cardiff 2026 0:26 better than the field Slower on the clock, ahead of the field Why ↓Close ↑
0:37 slower on the clock in a race that was 1:03 slower for everyone: 0:26 gained on the field, which the clock hides.
The fieldCompare these two →1:03 slower This athlete0:37 slower -
Cardiff29 Apr 2026Doubles Open · Men52:40 PB2/522Beat 100%
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Cardiff29 Apr 2026Individual Open · Men1:00:01 PB7/913Beat 99%
↑ 49 days after Glasgow 2026 1:44 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:04 faster on the clock, yet the race was 2:48 faster for everyone, so 1:44 was lost on the field.
The fieldCompare these two →2:48 faster This athlete1:04 faster -
Glasgow11 Mar 2026Individual Open · Men1:01:0522/1452Beat 99%
↑ 49 days after Manchester 2026 1:06 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:19 faster on the clock looks better than it was: the race was 2:25 faster for everyone, which leaves this 1:06 behind the field.
The fieldCompare these two →2:25 faster This athlete1:19 faster -
Manchester21 Jan 2026Individual Open · Men1:02:2440/1463Beat 97%
↑ 91 days after Birmingham 2025 4:38 better than the field Why ↓Close ↑
5:41 faster on the clock, and the race was 1:03 faster for everyone, so 4:38 of it was this athlete.
The fieldCompare these two →1:03 faster This athlete5:41 faster -
London Excel4 Dec 2025Doubles Pro · Men1:11:34 PB218/312Beat 30%
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Birmingham22 Oct 2025Individual Open · Men1:08:05179/1821Beat 90%