Progress against the field
Jennifer Costa and Louis Roros have dropped 0:35 behind the field from New York 2026 to Boston 2026.
Over the same races everyone got 4:05 quicker, so 3:30 faster on the clock looks better than it was.
The largest gain on the field came from Washington DC 2026 → Boston 2026: 3:57 in 35 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. The summary above covers Doubles Open · Mixed, with Louis Roros, the one raced most; every comparison is in the list below.
Every race
7 races · 5 events
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Boston8 Oct 2026Doubles Open · Mixed1:20:58 PB407/1096Beat 63%
↑ 35 days after Washington DC 2026, with Louis Roros 3:57 better than the field Why ↓Close ↑
3:57 better than the field: 4:09 faster on the clock, against 0:12 faster for everyone.
The fieldCompare these two →0:12 faster This pair4:09 faster -
Washington DC3 Sep 2026Doubles Open · Mixed1:25:07237/654Beat 64%
↑ 98 days after New York 2026, with Louis Roros 4:32 worse than the field Why ↓Close ↑
0:39 slower on the clock in a race that was 3:53 faster for everyone: 4:32 lost to the field.
The fieldCompare these two →3:53 faster This pair0:39 slower -
Washington DC3 Sep 2026Doubles Pro · Women1:29:03 PB154/223Beat 31%
↑ 98 days after New York 2026, with Tricia Rega 5:45 better than the field Why ↓Close ↑
6:40 faster on the clock, and the race was 0:55 faster for everyone, so 5:45 of it was this pair.
The fieldCompare these two →0:55 faster This pair6:40 faster -
New York28 May 2026Doubles Open · Mixed1:24:28156/479Beat 67%
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New York28 May 2026Doubles Pro · Women1:35:43262/333Beat 21%
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New York30 May 2025Doubles Open · Women1:35:12 PB609/830Beat 27%
↑ 363 days after New York 2024, with Tricia Rega 11:20 better than the field Why ↓Close ↑
11:20 better than the field: 19:52 faster on the clock, against 8:32 faster for everyone.
The fieldCompare these two →8:32 faster This pair19:52 faster -
New York1 Jun 2024Doubles Open · Women1:55:04391/436Beat 10%