Progress against the field
Debbie Nathan and Claudia Yefet have dropped 11:44 behind the field from London 2025 to Cardiff 2026.
Over the same races everyone got 4:28 quicker, so 7:16 slower on the clock looks better than it was.
The largest gain on the field came from Birmingham 2025 → London Olympia 2026: 13:08 in 153 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
4 races · 4 events
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Cardiff29 Apr 2026Doubles Open · Women1:57:20261/265Beat 2%
↑ 36 days after London Olympia 2026, with Claudia Yefet 6:10 worse than the field Why ↓Close ↑
6:10 behind the field: 5:15 slower on the clock, against 0:55 faster for everyone.
The fieldCompare these two →0:55 faster This pair5:15 slower -
London Olympia24 Mar 2026Doubles Open · Women1:52:05829/867Beat 4%
↑ 153 days after Birmingham 2025, with Claudia Yefet 13:08 better than the field Why ↓Close ↑
15:50 faster on the clock, and the race was 2:42 faster for everyone, so 13:08 of it was this pair.
The fieldCompare these two →2:42 faster This pair15:50 faster -
Birmingham22 Oct 2025Doubles Open · Women2:07:55897/904Beat 1%
↑ 172 days after London 2025, with Claudia Yefet 18:42 worse than the field Why ↓Close ↑
18:42 behind the field: 17:51 slower on the clock, against 0:51 faster for everyone.
The fieldCompare these two →0:51 faster This pair17:51 slower -
London3 May 2025Doubles Open · Women1:50:04 PB1064/1118Beat 5%