Full replay here:
https://twitter.com/UMichTrack/status/952604121948766208
"Willis and a top-notch professional field brought the crowd to its feet early, as the former Michigan standout pulled away from training partner and fellow New Zealand Olympian Hamish Carson to run 3:57.99, missing the 39-year-old record for the fastest mile run on Michigan soil (Suleiman Nyambui of UTEP at the 1979 NCAA Championships) by just .10 of a second."
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