Progress against the field
From Dublin 2025 to Birmingham 2026, the field gained 16:08 on Sandra Mackenzie.
The clock says 12:48 slower, but the races themselves got 3:20 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.
Every race
2 races · 2 events
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Birmingham31 Oct 2026Individual Open · Women2:04:00493/547Beat 10%
↑ 353 days after Dublin 2025 16:08 worse than the field Why ↓Close ↑
12:48 slower on the clock in a race that was 3:20 faster for everyone: 16:08 lost to the field.
The fieldCompare these two →3:20 faster This athlete12:48 slower -
Dublin12 Nov 2025Individual Open · Women1:51:12 PB362/423Beat 14%