Progress against the field
From Boston 2025 to Boston 2026, Stefani Reznikow got 8:33 faster than the field.
The clock says 11:55 faster, but the races themselves got 3:22 quicker for everyone.
The longest gap between two races compared here, 244 days between Boston 2025 and New York 2026, still ended 15:56 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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Boston8 Oct 2026Individual Open · Women2:39:31446/452Beat 1%
↑ 133 days after New York 2026 7:23 worse than the field Why ↓Close ↑
3:28 slower on the clock in a race that was 3:55 faster for everyone: 7:23 lost to the field.
The fieldCompare these two →3:55 faster This athlete3:28 slower -
New York28 May 2026Individual Open · Women2:36:03 PB1029/1098Beat 6%
↑ 244 days after Boston 2025 15:56 better than the field Why ↓Close ↑
15:23 faster on the clock in a race that was 0:33 slower for everyone: 15:56 better than the field.
The fieldCompare these two →0:33 slower This athlete15:23 faster -
Boston26 Sep 2025Individual Open · Women2:51:261281/1290Beat 1%