Progress against the field
Between London Excel 2025 and Birmingham 2026, Kathryn Miller lost 10:31 to the field.
The clock says 8:54 slower, but the races themselves got 1:37 quicker for everyone.
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
6 races · 5 events
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Birmingham31 Oct 2026Doubles Open · Mixed1:20:09 PB278/549Beat 49%
↑ 519 days after Cardiff 2025, with Sei Jun Wong 1:57 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:02 faster on the clock, yet the race was 3:59 faster for everyone, so 1:57 was lost on the field.
The fieldCompare these two →3:59 faster This pair2:02 faster -
Birmingham31 Oct 2026Individual Open · Women1:28:49101/279Beat 64%
↑ 331 days after London Excel 2025 10:31 worse than the field Why ↓Close ↑
10:31 behind the field: 8:54 slower on the clock, against 1:37 faster for everyone.
The fieldCompare these two →1:37 faster This athlete8:54 slower -
Cardiff29 Apr 2026Individual Pro · Women1:23:34 PB97/231Beat 58%
↑ 168 days after Dublin 2025 0:18 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:16 faster on the clock looks better than it was: the race was 1:34 faster for everyone, which leaves this 0:18 behind the field.
The fieldCompare these two →1:34 faster This athlete1:16 faster -
London Excel4 Dec 2025Individual Open · Women1:19:55 PB232/1379Beat 83%
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Dublin12 Nov 2025Individual Pro · Women1:24:5035/92Beat 62%
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Cardiff30 May 2025Doubles Open · Mixed1:22:11293/470Beat 38%