Progress against the field
Between Houston 2025 and Salt Lake City 2026, Mark Cox lost 5:45 to the field.
The races themselves barely changed, so 5:54 slower on the clock is the real picture.
The longest gap between two races compared here, 302 days between Dallas 2025 and Salt Lake City 2026, cost 1:58 on 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. The summary above covers Individual Pro · Men, the one raced most; every comparison is in the list below.
Every race
8 races · 8 events
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Salt Lake City19 Sep 2026Individual Pro · Men1:23:33162/349Beat 54%
↑ 302 days after Dallas 2025 1:58 worse than the field Why ↓Close ↑
2:57 slower on the clock in a race that was 0:59 slower for everyone: 1:58 lost to the field.
The fieldCompare these two →0:59 slower This athlete2:57 slower -
Dallas21 Nov 2025Individual Pro · Men1:20:36145/320Beat 55%
↑ 251 days after Houston 2025 3:47 worse than the field Why ↓Close ↑
2:57 slower on the clock in a race that was 0:50 faster for everyone: 3:47 lost to the field.
The fieldCompare these two →0:50 faster This athlete2:57 slower -
Houston15 Mar 2025Individual Pro · Men1:17:39 PB88/226Beat 61%
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Dallas23 Nov 2024Individual Open · Men1:14:3094/929Beat 90%
↑ 188 days after Gainful Anaheim 2024 0:00 better than the field Why ↓Close ↑
Moved with the field: 2:44 faster on the clock, against 2:44 faster for everyone.
The fieldCompare these two →2:44 faster This athlete2:44 faster -
Gainful Anaheim19 May 2024Individual Open · Men1:17:14105/623Beat 83%
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Houston16 Mar 2024Individual Open · Men1:19:08100/406Beat 75%
↑ 119 days after Dallas 2023 0:19 worse than the field Faster on the clock, behind the field Why ↓Close ↑
7:05 faster on the clock looks better than it was: the race was 7:24 faster for everyone, which leaves this 0:19 behind the field.
The fieldCompare these two →7:24 faster This athlete7:05 faster -
Dallas18 Nov 2023Individual Open · Men1:26:13118/436Beat 73%
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Washington D.C. Open North American ChampionshipsDate unknownIndividual Open · Men1:12:41 PB215/1544Beat 86%