Charles Nguyen won the Canadian Olympic Trials hammer title but will not go to Rio.
Ronnie Ash had the best time in the qualifying and semifinal round but his second-place finish in the final will send him to Rio.
Ronnie Ash took a huge first step to Rio in his first race, recording the top time in the field in the qualifying race.
Sooners, current and former, had mixed results Thursday at the U.S. Olympic Trials.
Julia Reedy finished 16 in the hammer in her first trip to the U.S. Olympic Trials. Action picks up on Thursday.
Riley Masters, who helped lead the Sooner distance efforts five years ago, celebrated Independence Day advancing to the 5,000 final.
Candyce McGrone recorded an 11.06, just .03 out of advancing to the final in the 100 at the Trials.
Candyce McGrone ran to advance to the 100 semi in the Trials while Daye Shon Roberson turns focus to the 200.
Daye Shon Roberson gets final spot in 400 semi with a 52.49.
Daye Shon Roberson is the first of several Sooners to go after a ticket to Rio on the track.
Mackenzie Shell cleared 13-3.50 to finish fifth at the U.S. Junior Nationals Sunday night.
Mackenzie Shell continues her freshman campaign on the national scene as she competes at the USATF Junior Championships Sunday.