The third-ranked Oregon women won with 205 points, followed by Nebraska with 195.5, No. 16 Stanford with 143.5 and Washington with 112.
Peterson, a junior transfer from Eastern Washington University via Gig Harbor's Peninsula HS, rifled the spear 174-2 (53.09m) to break the 2004 UW school mark set by US Olympic Trials qualifier Megan Spriestersbach of 173-7 (52.90m), and garner the only individual win on the women's side on the day.
Nearly pulling off the upset of the day was freshman Katie Flood, as she took second in the 1,500-meters in 4:18.80, a ten second PR over her prep days. Flood nearly chased down NCAA indoor mile champion Jordan Hasay of Oregon, who held on for the win in 4:18.61.
The Husky men finished third, as the host Ducks, currently the No. 10 team in the country claimed the title with 195 points, with No. 8 Nebraska next with 181 points, Washington with 159 and No. 9 Stanford with 121.
Sprinter James Alaka won both the 100 and 200, running 10.53 and 21.18 into a headwind. He also contributed a leg on the Huskies' winning 4 x 100m relay team, as they got the stick around the oval in 40.24.
The Huskies earned a victory in the men's javelin, as Kyle Nielsen won with a mark of 233-10 (71.27m).
(left/photo courtesy University of Oregon), a freshman from Seattle's Rainier Beach HS, who won the 400 in 45.79, and anchored the Ducks to victory, as they ran 3:10.93 in the 4 x 400m relay.
In his first meet since winning the NCAA indoor title in the pole vault, Husky senior Scott Roth cleared 18-0.5 (5.50m) to win the event.
Results from the Pepsi Team Invitational are available here.
In Austin, Texas, Washington State's Marissa Tschida, a senior from Missoula, Mont., won the javelin at the Texas Relays with a throw of 173-feet, 3 inches (52.80m) while teammate Courtney Kirkwood finished fourth after throwing 160-9 (49.00m). Tschida's mark was 3 1/2 feet below her season-best javelin throw.
"I love the Texas Relays," Tschida said. "It is my favorite meet of the year. The atmosphere, the competition and the weather are always great. Winning here feels amazing, and winning against this level of competition makes it so much more of an accomplishment."
Jeshua Anderson of the Cougars was not able to capture his fourth consecutive Texas Relays 400m hurdles title, finishing third with a final time of 50.41 seconds.
The WSU men's 4x400m relay squad of Brandon Dawson, Jacob Sealby, Anderson and Nate Washington finished seventh in the university race, running a time of 3 minutes, 11.95 seconds.
Results from the Texas Relays are available here via texassports.com.
In Spokane, the Idaho women (124.25) and the Eastern Washington men (129) took top honors in the Spokane Community College WAR 4 meet pitting schools from Washington against schools from Oregon, Montana, and Idaho.
Complete results are available here.
NOTE: The University of Oregon, University of Washington, Washington State University, and the University of Texas contributed to this report.