Progress against the field
Between Cape Town 2024 and Johannesburg 2025, Jc Roos lost 8:48 to the field.
The clock says 9:46 slower, but the races themselves got 0:58 slower for everyone.
The longest gap between two races compared here, 273 days between Johannesburg I 2025 and Johannesburg 2025, cost 5:37 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
-
Cape Town 13 Apr 2026Doubles Pro · Men59:56 PB16/103Beat 85%
-
Johannesburg29 Nov 2025Individual Pro · Men1:19:0026/112Beat 77%
↑ 273 days after Johannesburg I 2025 5:37 worse than the field Why ↓Close ↑
4:43 slower on the clock in a race that was 0:54 faster for everyone: 5:37 lost to the field.
The fieldCompare these two →0:54 faster This athlete4:43 slower -
Johannesburg I1 Mar 2025Individual Pro · Men1:14:178/105Beat 92%
↑ 161 days after Cape Town 2024 3:11 worse than the field Why ↓Close ↑
5:03 slower on the clock in a race that was 1:52 slower for everyone: 3:11 lost to the field.
The fieldCompare these two →1:52 slower This athlete5:03 slower -
Cape Town21 Sep 2024Individual Pro · Men1:09:14 PB9/85Beat 89%
-
World ChampionshipsDate unknownIndividual Pro · Men1:11:28410/522Beat 22%