Progress against the field
From Birmingham 2024 to Cardiff 2026, Oscar Jackson got 7:20 faster than the field.
Over the same races everyone got 8:50 quicker, so 16:10 faster on the clock looks better than it was.
The largest gain on the field came from Birmingham 2024 → Glasgow 2025: 8:19 in 138 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
9 races · 8 events
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Birmingham31 Oct 2026Doubles Open · Mixed1:18:01505/1159Beat 56%
↑ 546 days after London 2025, with Ellie Palmer 5:37 better than the field Why ↓Close ↑
8:04 faster on the clock, and the race was 2:27 faster for everyone, so 5:37 of it was this pair.
The fieldCompare these two →2:27 faster This pair8:04 faster -
Birmingham31 Oct 2026Doubles Open · Mixed1:04:06 PB28/560Beat 95%
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Cardiff29 Apr 2026Individual Open · Men1:13:21 PB109/528Beat 79%
↑ 413 days after Glasgow 2025 0:59 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:30 faster on the clock, yet the race was 3:29 faster for everyone, so 0:59 was lost on the field.
The fieldCompare these two →3:29 faster This athlete2:30 faster -
Stockholm18 Dec 2025Doubles Open · Men59:35 PB18/382Beat 95%
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Birmingham22 Oct 2025Doubles Open · Men1:00:14128/1099Beat 88%
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London3 May 2025Doubles Open · Mixed1:26:05736/956Beat 23%
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Glasgow12 Mar 2025Individual Open · Men1:15:51496/1445Beat 66%
↑ 138 days after Birmingham 2024 8:19 better than the field Why ↓Close ↑
13:40 faster on the clock, and the race was 5:21 faster for everyone, so 8:19 of it was this athlete.
The fieldCompare these two →5:21 faster This athlete13:40 faster -
Manchester24 Jan 2025Relay · Men1:02:2758/148Beat 61%
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Birmingham25 Oct 2024Individual Open · Men1:29:311171/1916Beat 39%