Progress against the field
Tamsyn Roberts has dropped 1:50 behind the field from Cardiff 2026 to Birmingham 2026.
Over the same races everyone got 2:43 quicker, so 0:53 faster 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.
Every race
4 races · 4 events
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Birmingham31 Oct 2026Individual Open · Women1:42:35 PB630/887Beat 29%
↑ 185 days after Cardiff 2026 1:50 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:53 faster on the clock, yet the race was 2:43 faster for everyone, so 1:50 was lost on the field.
The fieldCompare these two →2:43 faster This athlete0:53 faster -
Cardiff29 Apr 2026Individual Open · Women1:43:28435/646Beat 33%
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Madrid27 Nov 2025Doubles Open · Mixed1:13:29169/870Beat 81%
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Birmingham22 Oct 2025Doubles Open · Mixed1:12:42 PB77/312Beat 75%