Progress against the field
From Rotterdam 2024 to Rotterdam 2026, Birta Eiriksdottir and Inga Sigursveinsdottir have moved with the field: what changed on the clock changed for everyone.
The clock says 8:21 faster, but the races themselves got 8:15 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
3 races · 3 events
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Rotterdam15 Apr 2026Doubles Open · Women1:25:01 PB198/472Beat 58%
↑ 412 days after Rotterdam 2025, with Inga Sigursveinsdottir 0:51 better than the field Why ↓Close ↑
0:51 better than the field: 4:58 faster on the clock, against 4:07 faster for everyone.
The fieldCompare these two →4:07 faster This pair4:58 faster -
Rotterdam27 Feb 2025Doubles Open · Women1:29:59161/243Beat 34%
↑ 327 days after Rotterdam 2024, with Inga Sigursveinsdottir 0:45 worse than the field Faster on the clock, behind the field Why ↓Close ↑
3:23 faster on the clock looks better than it was: the race was 4:08 faster for everyone, which leaves this 0:45 behind the field.
The fieldCompare these two →4:08 faster This pair3:23 faster -
Rotterdam6 Apr 2024Doubles Open · Women1:33:22342/564Beat 39%