Tarik Robinson-O'Hagan of Woonsocket High in Rhode Island, an Ole Miss signee representing Ocean State Hammerheads, won the men's 6-kilogram hammer throw with a first-round mark of 246-4 (75.08m) at the USATF U20 Championships at Hayward Field in Eugene, Ore. Robinson-O'Hagan elevated to the No. 3 all-time prep competitor with the fourth-best throw in history using the 6-kilogram implement.