Progress against the field
Rob Van Efferen has dropped 4:11 behind the field from Maastricht 2024 to EMEA London Olympia 2026.
The clock says 5:22 faster, but the races themselves got 9:33 quicker for everyone.
The longest gap between two races compared here, 404 days between Maastricht 2024 and Rotterdam 2025, cost 4:59 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
11 races · 11 events
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Stockholm18 Jun 2026Individual Open · Men1:26:1655/153Beat 64%
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Rotterdam15 Apr 2026Individual Open · Men1:18:12 PB322/1192Beat 73%
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EMEA London Olympia24 Mar 2026Individual Open · Men1:19:46665/958Beat 31%
↑ 62 days after Amsterdam 2026 4:27 better than the field Why ↓Close ↑
4:27 better than the field: 4:58 faster on the clock, against 0:31 faster for everyone.
The fieldCompare these two →0:31 faster This athlete4:58 faster -
Amsterdam21 Jan 2026Individual Open · Men1:24:44873/1620Beat 46%
↑ 40 days after Gent 2025 5:17 worse than the field Why ↓Close ↑
2:16 slower on the clock in a race that was 3:01 faster for everyone: 5:17 lost to the field.
The fieldCompare these two →3:01 faster This athlete2:16 slower -
Gent12 Dec 2025Individual Open · Men1:22:28651/1428Beat 54%
↑ 251 days after Belgium 2025 0:41 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:10 faster on the clock, yet the race was 2:51 faster for everyone, so 0:41 was lost on the field.
The fieldCompare these two →2:51 faster This athlete2:10 faster -
Belgium5 Apr 2025Individual Open · Men1:24:38760/1638Beat 54%
↑ 37 days after Rotterdam 2025 2:19 better than the field Why ↓Close ↑
2:19 better than the field: 3:14 faster on the clock, against 0:55 faster for everyone.
The fieldCompare these two →0:55 faster This athlete3:14 faster -
Rotterdam27 Feb 2025Individual Open · Men1:27:52685/1283Beat 47%
↑ 404 days after Maastricht 2024 4:59 worse than the field Why ↓Close ↑
2:44 slower on the clock in a race that was 2:15 faster for everyone: 4:59 lost to the field.
The fieldCompare these two →2:15 faster This athlete2:44 slower -
Maastricht20 Jan 2024Individual Open · Men1:25:08370/781Beat 53%
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BudapestDate unknownIndividual Open · Men1:26:36290/514Beat 44%
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World ChampionshipsDate unknownIndividual Open · Men1:26:2132/88Beat 64%
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World Championships NiceDate unknownIndividual Pro · Men1:41:19 PB814/830Beat 2%