Progress against the field
Mehrzad Birani has gained 2:59 on the field from Katowice 2026 to Rome 2026.
The clock says 7:57 faster, but the races themselves got 4:58 quicker for everyone.
The largest gain on the field came from Katowice 2026 → Warsaw 2026: 3:45 in 54 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
5 races · 5 events
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Rome23 Sep 2026Individual Open · Men1:08:3343/642Beat 93%
↑ 53 days after Istanbul 2026 1:11 worse than the field Why ↓Close ↑
1:11 behind the field: 1:18 slower on the clock, against 0:07 slower for everyone.
The fieldCompare these two →0:07 slower This athlete1:18 slower -
Istanbul1 Aug 2026Individual Open · Men1:07:15 PB64/743Beat 91%
↑ 71 days after Berlin 2026 2:05 better than the field Why ↓Close ↑
2:05 better than the field: 5:43 faster on the clock, against 3:38 faster for everyone.
The fieldCompare these two →3:38 faster This athlete5:43 faster -
Berlin22 May 2026Individual Open · Men1:12:58130/686Beat 81%
↑ 36 days after Warsaw 2026 1:40 worse than the field Why ↓Close ↑
4:39 slower on the clock in a race that was 2:59 slower for everyone: 1:40 lost to the field.
The fieldCompare these two →2:59 slower This athlete4:39 slower -
Warsaw16 Apr 2026Individual Open · Men1:08:19155/1792Beat 91%
↑ 54 days after Katowice 2026 3:45 better than the field Why ↓Close ↑
3:45 better than the field: 8:11 faster on the clock, against 4:26 faster for everyone.
The fieldCompare these two →4:26 faster This athlete8:11 faster -
Katowice21 Feb 2026Individual Open · Men1:16:30234/859Beat 73%