The U.S. dominated the opening night of the IAAF World Relays in Yokohama, Japan, highlighted by winning both finals in unusual mixed-gender events.
University of Oregon wide receiver turned Olympian Devon Allen anchored the shuttle hurdles relay, where two runners of each gender cover 110 meters per country. Each relay exchange (sans baton) is made at the opposite end of the track.
Allen received a lead from Christina Clemons, Freddie Crittenden and Sharika Nelvis, and the Americans won a two-team final over Japan by .63 of a second in 54.