Progress against the field
Between London 2023 and Birmingham 2024, Yvonne Shum and Bethany Shum lost 1:21 to the field.
The races barely moved for everyone else, so 1:17 slower on the clock is close to the whole story.
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
3 races · 3 events
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Birmingham22 Oct 2025Doubles Open · Women1:15:5871/411Beat 83%
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Birmingham25 Oct 2024Doubles Open · Women1:16:57214/973Beat 78%
↑ 334 days after London 2023, with Bethany Shum 1:21 worse than the field Why ↓Close ↑
1:21 behind the field: 1:17 slower on the clock, against 0:04 faster for everyone.
The fieldCompare these two →0:04 faster This pair1:17 slower -
London26 Nov 2023Doubles Open · Women1:15:40 PB221/1096Beat 80%