Progress against the field
From Houston 2025 to Houston 2026, Joelyann Valles Rivera has moved with the field: what changed on the clock changed for everyone.
Over the same races everyone got 2:55 quicker, so 2:59 faster on the clock looks better than it was.
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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Houston26 Mar 2026Individual Open · Women1:24:47 PB106/648Beat 84%
↑ 376 days after Houston 2025 0:04 better than the field Why ↓Close ↑
2:59 faster on the clock, and the race was 2:55 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →2:55 faster This athlete2:59 faster -
Dallas21 Nov 2025Doubles Open · Mixed1:17:28 PB445/1504Beat 70%
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Houston15 Mar 2025Individual Open · Women1:27:46209/646Beat 68%