The race, in three figures
The race, in words
1:23:33 at Rotterdam 2026 put Nathan Grootenboer 512th of 1,192 men in the Open division, ahead of 57% of the field.
Nowhere gained more than the sandbag lunges: 0:46 on the median. Stronger after halfway: 2:50 better against the middle of the field than before it.
Rotterdam gave the field time back: about 1:19 faster than the average race this season, by 1,324 athletes who raced both.
Eight blocks
Bar = field beaten · tick = median
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Block 01 10:24Running 1 5:17v median +0:22
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Block 02 7:50Running 2 4:55v median +0:10
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Block 03 9:18Running 3 5:06v median +0:02
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Block 04 11:15Running 4 5:08v median +0:02
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Block 05 10:10Running 5 4:58v median −0:12
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Block 06 6:55Running 6 4:46v median −0:21
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Block 07 9:21Running 7 4:54v median −0:14
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Block 08 12:56Running 8 5:56v median −0:08
Roxzone, per block
Approach · Exit 5:31
Against the middle of your field
Men · n = 1185
A pace, not a person: at every mat, the middle of the 1,185 men who finished.