Progress against the field
Between Cardiff 2026 and Birmingham 2026, Rebecca Greyling lost 1:26 to the field.
Over the same races everyone got 2:43 quicker, so 1:17 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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
5 races · 5 events
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Birmingham31 Oct 2026Individual Open · Women1:18:54 PB147/887Beat 83%
↑ 185 days after Cardiff 2026 1:26 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:17 faster on the clock, yet the race was 2:43 faster for everyone, so 1:26 was lost on the field.
The fieldCompare these two →2:43 faster This athlete1:17 faster -
Rome23 Sep 2026Individual Open · WomenDNF—
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Cardiff29 Apr 2026Individual Open · Women1:20:1190/646Beat 86%
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Copenhagen13 Mar 2026Individual Open · Women1:23:04179/797Beat 78%
↑ 85 days after Stockholm 2025 5:53 better than the field Why ↓Close ↑
5:53 better than the field: 6:22 faster on the clock, against 0:29 faster for everyone.
The fieldCompare these two →0:29 faster This athlete6:22 faster -
Stockholm18 Dec 2025Individual Open · Women1:29:26368/803Beat 54%