56:51: What Yomif Kejelcha’s Half Marathon World Record Teaches Us About Pacing
On Sunday in Buenos Aires, Yomif Kejelcha ran 56:51 for the half marathon, averaging roughly 4:20 per mile for 13.1 miles, or about 2:42 per kilometer. He finished more than two minutes ahead of second place and, subject to the normal ratification process, took 29 seconds off Jacob Kiplimo’s previous world record of 57:20. Those […]
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