Progress against the field
Tshegofatso Isaac has gained 31:26 on the field from Johannesburg I 2025 to Johannesburg 2026.
Over the same races everyone got 10:43 quicker, so 42:09 faster on the clock looks better than it was.
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
3 races · 3 events
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Cape Town14 Aug 2026Doubles Open · Women1:36:55 PB218/399Beat 45%
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Johannesburg30 May 2026Individual Open · Women1:54:02 PB308/633Beat 51%
↑ 455 days after Johannesburg I 2025 31:26 better than the field Why ↓Close ↑
42:09 faster on the clock, and the race was 10:43 faster for everyone, so 31:26 of it was this athlete.
The fieldCompare these two →10:43 faster This athlete42:09 faster -
Johannesburg I1 Mar 2025Individual Open · Women2:36:11355/382Beat 7%