Progress against the field
Between Mexico City 2025 and Acapulco 2026, Jazziel Valdez Romero pulled 5:57 ahead of the field.
Over the same races everyone got 15:02 quicker, so 20:59 faster on the clock looks better than it was.
The largest gain on the field came from Guadalajara 2026 → Monterrey 2026: 33:31 in 70 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
4 races · 4 events
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Acapulco4 Sep 2026Individual Open · Men1:46:47902/1244Beat 28%
↑ 139 days after Monterrey 2026 11:24 worse than the field Why ↓Close ↑
11:24 behind the field: 6:14 slower on the clock, against 5:10 faster for everyone.
The fieldCompare these two →5:10 faster This athlete6:14 slower -
Monterrey18 Apr 2026Individual Open · Men1:40:33 PB643/1279Beat 50%
↑ 70 days after Guadalajara 2026 33:31 better than the field Why ↓Close ↑
33:31 better than the field: 37:27 faster on the clock, against 3:56 faster for everyone.
The fieldCompare these two →3:56 faster This athlete37:27 faster -
Guadalajara7 Feb 2026Individual Open · Men2:18:001291/1361Beat 5%
↑ 92 days after Mexico City 2025 16:10 worse than the field Why ↓Close ↑
10:14 slower on the clock in a race that was 5:56 faster for everyone: 16:10 lost to the field.
The fieldCompare these two →5:56 faster This athlete10:14 slower -
Mexico City7 Nov 2025Individual Open · Men2:07:461242/1454Beat 15%