Progress against the field
Between Johannesburg I 2025 and Johannesburg 2025, Tebogo Ntjanyana pulled 18:20 ahead of the field.
The clock says 19:14 faster, but the races themselves got 0:54 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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Johannesburg29 Nov 2025Individual Pro · Men2:12:36 PB106/112Beat 5%
↑ 273 days after Johannesburg I 2025 18:20 better than the field Why ↓Close ↑
18:20 better than the field: 19:14 faster on the clock, against 0:54 faster for everyone.
The fieldCompare these two →0:54 faster This athlete19:14 faster -
Johannesburg I1 Mar 2025Individual Pro · Men2:31:50104/105Beat 1%