Progress against the field
Between Dublin 2025 and Birmingham 2026, Thomas Masson pulled 3:10 ahead of the field.
The clock says 6:02 faster, but the races themselves got 2:52 quicker for everyone.
The biggest step was Dublin 2025 → Cardiff 2026: 3:15 on the field in 168 days.
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
4 races · 4 events
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Birmingham31 Oct 2026Individual Open · Men1:42:56 PB1142/1442Beat 21%
↑ 185 days after Cardiff 2026 0:05 worse than the field Why ↓Close ↑
1:38 faster on the clock, and the race was 1:43 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →1:43 faster This athlete1:38 faster -
Cardiff29 Apr 2026Individual Open · Men1:44:34787/913Beat 14%
↑ 168 days after Dublin 2025 3:15 better than the field Why ↓Close ↑
3:15 better than the field: 4:24 faster on the clock, against 1:09 faster for everyone.
The fieldCompare these two →1:09 faster This athlete4:24 faster -
Glasgow11 Mar 2026Doubles Open · Mixed1:54:40 PB1160/1198Beat 3%
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Dublin12 Nov 2025Individual Open · Men1:48:58838/898Beat 7%