Progress against the field
Between Birmingham 2022 and Birmingham 2025, Jason Smith lost 18:15 to the field.
Over the same races everyone got 15:08 quicker, so 3:07 slower on the clock looks better than it was.
The longest gap between two races compared here, 385 days between Glasgow 2023 and Glasgow 2024, cost 8:43 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.
Every race
5 races · 5 events
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Birmingham22 Oct 2025Individual Open · Men1:36:501204/1600Beat 25%
↑ 362 days after Birmingham 2024 14:51 worse than the field Why ↓Close ↑
10:12 slower on the clock in a race that was 4:39 faster for everyone: 14:51 lost to the field.
The fieldCompare these two →4:39 faster This athlete10:12 slower -
Birmingham25 Oct 2024Individual Open · Men1:26:381026/1916Beat 47%
↑ 237 days after Glasgow 2024 2:56 better than the field Why ↓Close ↑
2:56 better than the field: 5:17 faster on the clock, against 2:21 faster for everyone.
The fieldCompare these two →2:21 faster This athlete5:17 faster -
Glasgow2 Mar 2024Individual Open · Men1:31:551141/1784Beat 36%
↑ 385 days after Glasgow 2023 8:43 worse than the field Why ↓Close ↑
6:15 slower on the clock in a race that was 2:28 faster for everyone: 8:43 lost to the field.
The fieldCompare these two →2:28 faster This athlete6:15 slower -
Glasgow11 Feb 2023Individual Open · Men1:25:40 PB515/974Beat 47%
↑ 119 days after Birmingham 2022 2:23 better than the field Why ↓Close ↑
2:23 better than the field: 8:03 faster on the clock, against 5:40 faster for everyone.
The fieldCompare these two →5:40 faster This athlete8:03 faster -
Birmingham15 Oct 2022Individual Open · Men1:33:43632/960Beat 34%