The race, in three figures
The race, in words
Ivo Groot Koerkamp finished in the top 10% of the field at Rotterdam 2025, in 1:11:52 for 51st of 600 men in the Open division.
The burpee broad jumps were where this race was made, 1:44 ahead of the median. A harder second half: 2:43 more lost to the middle of the field after halfway than before it. Time in the roxzone, 4:59, was faster than 92% of the field.
Rotterdam gave the field time back: about 0:39 faster than the average race this season, by 1,452 athletes who raced both.
Eight blocks
Bar = field beaten · tick = median
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Block 01 8:18Running 1 4:17v median −0:51
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Block 02 6:29Running 2 4:08v median −0:42
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Block 03 8:08Running 3 4:16v median −0:56
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Block 04 8:19Running 4 4:18v median −0:59
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Block 05 8:55Running 5 4:41v median −0:48
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Block 06 8:17Running 6 4:29v median −0:50
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Block 07 8:51Running 7 4:35v median −0:44
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Block 08 9:46Running 8 4:55v median −1:04
Roxzone, per block
Approach · Exit 4:59
Against the middle of your field
Men · n = 571
A pace, not a person: at every mat, the middle of the 571 men who finished.