Progress against the field
From Puebla 2026 to Mexico City 2026, Karin Sefchovich and Tamara Rosengaus got 3:40 faster than the field.
The clock says 11:21 faster, but the races themselves got 7:41 quicker for everyone.
The biggest step was Puebla 2026 → Acapulco 2026: 3:49 on the field in 111 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
3 races · 3 events
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Mexico City29 Oct 2026Doubles Open · Women1:24:26209/1538Beat 86%
↑ 55 days after Acapulco 2026, with Tamara Rosengaus 0:09 worse than the field Why ↓Close ↑
1:15 slower on the clock, and the race was 1:06 slower for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →1:06 slower This pair1:15 slower -
Acapulco4 Sep 2026Doubles Open · Women1:23:11 PB236/863Beat 73%
↑ 111 days after Puebla 2026, with Tamara Rosengaus 3:49 better than the field Why ↓Close ↑
12:36 faster on the clock, and the race was 8:47 faster for everyone, so 3:49 of it was this pair.
The fieldCompare these two →8:47 faster This pair12:36 faster -
Puebla16 May 2026Doubles Open · Women1:35:47390/855Beat 54%