Progress against the field
Between London Olympia 2026 and Birmingham 2026, Oksun Sim and Boni Yuen pulled 38:24 ahead of the field.
Over the same races everyone got 1:34 quicker, so 39:58 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 2026Doubles Open · Women1:14:30 PB50/341Beat 85%
↑ 221 days after London Olympia 2026, with Boni Yuen 38:24 better than the field Why ↓Close ↑
38:24 better than the field: 39:58 faster on the clock, against 1:34 faster for everyone.
The fieldCompare these two →1:34 faster This pair39:58 faster -
London Olympia24 Mar 2026Doubles Open · Women1:54:28390/404Beat 4%
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Bilbao7 Feb 2026Individual Open · Women1:20:42 PB112/438Beat 74%
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Copenhagen14 Mar 2025Relay · Mixed1:08:4411/34Beat 68%