Progress against the field
Between Las Vegas 2026 and Boston 2026, Arielle Delfino and David Delfino pulled 1:52 ahead of the field.
The clock says 5:54 faster, but the races themselves got 4:02 quicker for everyone.
The largest gain on the field came from New York 2026 → Boston 2026: 2:40 in 133 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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Boston8 Oct 2026Doubles Open · Mixed1:15:36 PB74/263Beat 72%
↑ 133 days after New York 2026, with David Delfino 2:40 better than the field Why ↓Close ↑
2:40 better than the field: 4:49 faster on the clock, against 2:09 faster for everyone.
The fieldCompare these two →2:09 faster This pair4:49 faster -
Washington DC3 Sep 2026Doubles Open · Women1:23:36 PB123/706Beat 83%
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New York28 May 2026Doubles Open · Mixed1:20:2593/364Beat 75%
↑ 97 days after Las Vegas 2026, with David Delfino 0:48 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:05 faster on the clock, yet the race was 1:53 faster for everyone, so 0:48 was lost on the field.
The fieldCompare these two →1:53 faster This pair1:05 faster -
Las Vegas20 Feb 2026Doubles Open · Mixed1:21:30766/2139Beat 64%