Progress against the field
Between Cape Town 2025 and Johannesburg 2026, Johan Claassens pulled 10:37 ahead of the field.
The clock says 11:43 faster, but the races themselves got 1:06 quicker 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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Johannesburg30 May 2026Individual Open · Men2:43:04 PB726/740Beat 2%
↑ 315 days after Cape Town 2025 10:37 better than the field Why ↓Close ↑
11:43 faster on the clock, and the race was 1:06 faster for everyone, so 10:37 of it was this athlete.
The fieldCompare these two →1:06 faster This athlete11:43 faster -
Cape Town19 Jul 2025Individual Open · Men2:54:47779/781Beat 0%