Progress against the field
Jonas De Roos has gained 3:59 on the field from Amsterdam 2026 to Maastricht 2026.
Over the same races everyone got 2:14 quicker, so 6:13 faster on the clock looks better than it was.
The largest gain on the field came from Amsterdam 2026 → Rotterdam 2026: 3:44 in 84 days.
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
4 races · 4 events
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Maastricht19 Sep 2026Individual Open · Men1:23:18 PB503/1119Beat 55%
↑ 157 days after Rotterdam 2026 0:15 better than the field Why ↓Close ↑
0:15 better than the field: 0:21 faster on the clock, against 0:06 faster for everyone.
The fieldCompare these two →0:06 faster This athlete0:21 faster -
Rotterdam15 Apr 2026Individual Open · Men1:23:39516/1192Beat 57%
↑ 84 days after Amsterdam 2026 3:44 better than the field Why ↓Close ↑
3:44 better than the field: 5:52 faster on the clock, against 2:08 faster for everyone.
The fieldCompare these two →2:08 faster This athlete5:52 faster -
Amsterdam21 Jan 2026Individual Open · Men1:29:31397/608Beat 35%
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Maastricht19 Sep 2025Doubles Open · Men1:11:01 PB99/354Beat 72%