Progress against the field
Nolan Southfield has dropped 8:43 behind the field from Chicago 2022 to Chicago 2025.
The clock says 0:53 faster, but the races themselves got 9:36 quicker for everyone.
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
5 races · 5 events
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Houston26 Mar 2026Doubles Open · Men1:23:08 PB361/727Beat 50%
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Chicago14 Nov 2025Individual Open · Men1:33:57 PB890/1621Beat 45%
↑ 363 days after Chicago Navy Pier 2024 0:10 better than the field Why ↓Close ↑
0:10 better than the field: 0:36 faster on the clock, against 0:26 faster for everyone.
The fieldCompare these two →0:26 faster This athlete0:36 faster -
Chicago Navy Pier16 Nov 2024Individual Open · Men1:34:33528/814Beat 35%
↑ 644 days after Chicago - North American Open Championship 2023 0:15 worse than the field Faster on the clock, behind the field Why ↓Close ↑
4:38 faster on the clock, yet the race was 4:53 faster for everyone, so 0:15 was lost on the field.
The fieldCompare these two →4:53 faster This athlete4:38 faster -
Chicago - North American Open Championship11 Feb 2023Individual Open · Men1:39:11240/354Beat 32%
↑ 98 days after Chicago 2022 8:38 worse than the field Why ↓Close ↑
8:38 behind the field: 4:21 slower on the clock, against 4:17 faster for everyone.
The fieldCompare these two →4:17 faster This athlete4:21 slower -
Chicago5 Nov 2022Individual Open · Men1:34:50124/233Beat 47%