Jaslene Massey* (USA)Simon Rosselli* (USA)Mia Uusorg* (EST)Beginning Wednesday morning, Hayward Field at the University of Oregon will host the World Athletics U20 Championships. Four Ducks—one current and three signees—are set to compete in the meet includingwho just completed his freshman season in Eugene.5,000 MetersFinal: Wed., Aug. 5 – 8:22 p.m.DiscusQualifying: Wed., Aug. 5 – 10 a.m.Final: Thurs., Aug. 6 – 6 p.m.Shot PutQualifying: Thurs., Aug. 6 – 10 a.m.Final: Thurs., Aug. 6 – 7:40 p.m.DiscusQualifying: Sat., Aug. 8 – 12:50 p.m.Final: Sun., Aug. 9 – 12:10 p.m.HeptathlonDay 1 Begins: Wed., Aug. 5 – 10 a.m.Day 2 Begins: Thurs., Aug. 6 – 10:25 a.m.(* UO signees)Gonzalez, Massey and Rosselli all won their respective events at the recent USATF U20 Championships, also held at Hayward Field in late June.Eugene previously hosted this meet—then the World Junior Championships—at Historic Hayward Field in 2014. Ariana Washington, then an incoming UO freshman, won a gold medal with Team USA in the 4x100-meter relay.For more news and information about Oregon cross country and track and field, follow @OregonTF on Facebook, Instagram and X.