Cheptegei already owns WRs at 5k (12:35.36) and 10k (26:11.00), but breaking Daniel Komen's mark of 7:20.67 that has stood the test of time for nearly 25 years will be a new kind of challenge.
*MB: Confirmed: Joshua Cheptegei WILL go for Komen's legendary 7:20.67 on Wednesday!!