Progress against the field
Between Chicago 2023 and New York 2025, Gary Kershner lost 6:01 to the field.
Over the same races everyone got 5:51 quicker, so 0:10 slower 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
11 races · 11 events
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Dallas21 Nov 2025Doubles Open · Mixed1:15:35378/1504Beat 75%
↑ 56 days after Boston 2025, with Dori Kershner 6:27 worse than the field Why ↓Close ↑
6:27 behind the field: 6:03 slower on the clock, against 0:24 faster for everyone.
The fieldCompare these two →0:24 faster This pair6:03 slower -
Boston26 Sep 2025Doubles Open · Mixed1:09:32 PB137/1259Beat 89%
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New York30 May 2025Individual Open · Men1:26:57758/1462Beat 48%
↑ 195 days after Chicago Navy Pier 2024 5:29 worse than the field Why ↓Close ↑
5:29 behind the field: 2:15 slower on the clock, against 3:14 faster for everyone.
The fieldCompare these two →3:14 faster This athlete2:15 slower -
Chicago Navy Pier16 Nov 2024Individual Open · Men1:24:42 PB346/814Beat 58%
↑ 371 days after Chicago 2023 0:32 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:05 faster on the clock looks better than it was: the race was 2:37 faster for everyone, which leaves this 0:32 behind the field.
The fieldCompare these two →2:37 faster This athlete2:05 faster -
Toronto5 Oct 2024Doubles Open · Mixed1:11:0724/257Beat 91%
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Washington - North American Championships2 Mar 2024Doubles Open · Mixed1:09:5328/142Beat 80%
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Chicago11 Nov 2023Individual Open · Men1:26:47209/469Beat 55%
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New York1 Oct 2022Individual Open · Men1:34:49154/273Beat 44%
↑ 210 days after New York 2022 0:24 better than the field Why ↓Close ↑
4:03 faster on the clock, and the race was 3:39 faster for everyone, so 0:24 of it was this athlete.
The fieldCompare these two →3:39 faster This athlete4:03 faster -
New York5 Mar 2022Individual Open · Men1:38:52105/177Beat 41%
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Washington D.C. Open North American ChampionshipsDate unknownDoubles Open · Mixed1:10:0976/761Beat 90%
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New YorkDate unknownIndividual Open · MenDNF—