Progress against the field
Kirsty Mars and Jason Challis have dropped 3:22 behind the field from Birmingham 2025 to Birmingham 2026.
Over the same races everyone got 2:17 quicker, so 1:05 slower on the clock looks better than it was.
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 Doubles Open · Mixed, with Jason Challis, the one raced most; every comparison is in the list below.
Every race
5 races · 4 events
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Birmingham31 Oct 2026Doubles Open · Mixed1:16:59186/560Beat 67%
↑ 374 days after Birmingham 2025, with Jason Challis 3:22 worse than the field Why ↓Close ↑
3:22 behind the field: 1:05 slower on the clock, against 2:17 faster for everyone.
The fieldCompare these two →2:17 faster This pair1:05 slower -
Birmingham31 Oct 2026Doubles Open · Women1:14:02 PB68/585Beat 88%
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Birmingham22 Oct 2025Doubles Open · Mixed1:15:54 PB299/889Beat 66%
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Birmingham25 Oct 2024Doubles Open · Women1:26:01538/973Beat 45%
↑ 370 days after Birmingham 2023, with Sally Towers 9:27 better than the field Why ↓Close ↑
9:27 better than the field: 11:35 faster on the clock, against 2:08 faster for everyone.
The fieldCompare these two →2:08 faster This pair11:35 faster -
Birmingham21 Oct 2023Doubles Open · Women1:37:36375/460Beat 19%