Progress against the field
From Birmingham 2025 to Birmingham 2026, Roslyne Thomson got 8:24 faster than the field.
Over the same races everyone got 3:31 quicker, so 11:55 faster on the clock looks better than it was.
The largest gain on the field came from Birmingham 2025 → Glasgow 2026: 9:08 in 140 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
3 races · 3 events
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Birmingham31 Oct 2026Individual Open · Women2:04:36 PB496/547Beat 9%
↑ 234 days after Glasgow 2026 0:44 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:42 faster on the clock, yet the race was 1:26 faster for everyone, so 0:44 was lost on the field.
The fieldCompare these two →1:26 faster This athlete0:42 faster -
Glasgow11 Mar 2026Individual Open · Women2:05:18980/1084Beat 10%
↑ 140 days after Birmingham 2025 9:08 better than the field Why ↓Close ↑
11:13 faster on the clock, and the race was 2:05 faster for everyone, so 9:08 of it was this athlete.
The fieldCompare these two →2:05 faster This athlete11:13 faster -
Birmingham22 Oct 2025Individual Open · Women2:16:31366/380Beat 4%