Progress against the field
Between Berlin 2025 and Dublin 2025, Jason O Brien lost 11:59 to the field.
The clock says 12:56 slower, but the races themselves got 0:57 slower 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
2 races · 2 events
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Dublin12 Nov 2025Individual Open · Men1:54:52863/898Beat 4%
↑ 180 days after Berlin 2025 11:59 worse than the field Why ↓Close ↑
11:59 behind the field: 12:56 slower on the clock, against 0:57 slower for everyone.
The fieldCompare these two →0:57 slower This athlete12:56 slower -
Berlin16 May 2025Individual Open · Men1:41:56 PB1684/1851Beat 9%