Ashton Eaton broke his own world record in the decathlon, while a trio of Ducks won silver in the 4x100 meter relay.
Two-time defending decathlon World Champion Ashton Eaton bookended his day with record breaking results.
Matthew Centrowitz advanced in the 1,500 meters, and senior Johnathan Cabral wrapped up his season with a personal best in the 110 hurdles.
Former Duck Phyllis Francis advance to the final of the women's 400, while current Duck Jenna Prandini advanced in the 200.
It's never too early to secure your spot to watch the defending national champion Oregon track and field teams.
Phyllis Francis placed second in her qualifying heat of the 400 meters, running 50.52 to advance to Tuesday's semifinal round.
While Brianne Theisen-Eaton finished her heptathlon with a silver medal, current Duck Jasmine Todd was just getting started.
Brianne Theisen-Eaton is currently fourth in the heptathlon while Galen Rupp finished fifth in the men's 10,000.
Jenna Prandini and Jasmine Todd will join a group of eight alums in Beijing this week.
The two are part of the group of three men and three women up for the award, and represent UO as the only school with multiple finalists.
Edward Cheserek led the way for the Ducks as the men's scholar athlete for both the indoor and outdoor seasons.
Lananna will return to Olympic duty after he served as an assistant coach for Team USA at the 2004 Olympic Games in Athens.