Progress against the field
Between Monterrey 2025 and Puebla 2026, Karen Soiré Cornejo Alfaro and Arith Yahaira López Ramírez pulled 4:57 ahead of the field.
The clock says 4:18 faster, but the races themselves got 0:39 slower for everyone.
The longest gap between two races compared here, 216 days between Monterrey 2025 and Mexico City 2025, still ended 4:41 ahead of the field.
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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Puebla16 May 2026Doubles Open · Women1:20:34 PB61/855Beat 93%
↑ 190 days after Mexico City 2025, with Arith Yahaira López Ramírez 0:16 better than the field Why ↓Close ↑
2:03 faster on the clock, and the race was 1:47 faster for everyone, so 0:16 of it was this pair.
The fieldCompare these two →1:47 faster This pair2:03 faster -
Mexico City7 Nov 2025Doubles Open · Women1:22:3769/692Beat 90%
↑ 216 days after Monterrey 2025, with Arith Yahaira López Ramírez 4:41 better than the field Why ↓Close ↑
2:15 faster on the clock in a race that was 2:26 slower for everyone: 4:41 better than the field.
The fieldCompare these two →2:26 slower This pair2:15 faster -
Monterrey5 Apr 2025Doubles Open · Women1:24:52117/346Beat 66%