Progress against the field
Hans Van Vliet has dropped 4:32 behind the field from Boston 2025 to Tampa 2026.
Over the same races everyone got 6:28 quicker, so 1:56 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
2 races · 2 events
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Tampa22 Oct 2026Individual Open · Men1:13:28 PB129/1079Beat 88%
↑ 391 days after Boston 2025 4:32 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:56 faster on the clock looks better than it was: the race was 6:28 faster for everyone, which leaves this 4:32 behind the field.
The fieldCompare these two →6:28 faster This athlete1:56 faster -
Boston26 Sep 2025Individual Open · Men1:15:24216/1463Beat 85%