The 57.2/57.8 pacing on Athing Mu’s American Record 800 was nothing like the 55.4/59.6 division of effort on her previous standard. (VICTOR SAILER/PHOTO RUN)
The 57.2/57.8 pacing on Athing Mu’s American Record 800 was nothing like the 55.4/59.6 division of effort on her previous standard. (VICTOR SAILER/PHOTO RUN)