LOS ANGELES - In what is becoming tradition, the Oregon Ducks swept the Pac-12 Track & Field Championships Sunday at Drake Stadium.

The Oregon men won going away, and the UO women showed a flair for the dramatic. The bottom line was the same.

The Ducks have owned this meet since 2009, when the women began a streak of seven consecutive titles. The men have won nine in a row, and 10 of the last 11.

"Unbelievable team effort by both the men and the women," UO coach Robert Johnson said.

Oregon's women's team was without junior Jenna Prandini, who won three events at this meet last year. She apparently is ill.

Sprinter Ariana Washington, a probable scorer in two events and a member of the 4x100 relay, was left home with an injured foot.

Former national prep record-holder Haley Crouser left the team during the regular season.

The men were missing 2014 USATF 110 hurdles champion Devon Allen (knee), Pac-12 110 hurdles leader Johnathan Cabral (hamstring) and Johnny Gregorek, who qualified on Saturday for the 1,500 final but was left at the hotel because of an illness.

"There are some issues there that he has to go and clean up, and take care of," Johnson said.

It should have been trouble. Instead, Oregon won the men's meet with 152 points, outscoring USC, second with 121.

The Ducks nailed it down emphatically before a crowd of 1,212 by winning the men's 4x400 in 3 minutes, 5.05 seconds after the meet already had been wrapped up.

"We wanted to end the meet with a win," anchor Marcus Chambers said. "We never want to go out just to go around. We compete to win."

The UO women had their hands full with USC all day. The Ducks didn't clinch until anchor Ashante Horsley brought the 4x400 home in second place in the meet's final event to give Oregon 185 points. Second-place USC had 182.

Everywhere you looked, an Oregon athlete was stepping up.

The UO men scored in 17 of 21 events, and the UO women in 18 of 21. Some of the performances were spectacular.

Chambers won the 400 in 45.21, a personal record and the No. 4 time in school history.

The versatile Jasmine Todd, second on Saturday in the long jump, ran the key, second leg on the makeshift UO 4x100 that placed second, blitzed the field to win the 100, and led teammate Sasha Wallace to a 1-2 finish in the triple jump.

Todd's winning triple jump of 42 feet, 113/4 inches is a PR by more than a foot and No. 3 in school history. She finished with a meet-best 35 individual points.

Freshman Raeyvn Rogers won the 800 from in front in 2:01.67, a PR and No. 4 in school history behind Claudette Groenendaal, Laura Roesler and Leann Warren. Annie Leblanc kicked from behind to finish second in 2:03.77.

Sophomore Ben Thiel blew up the form charts by winning the 400 hurdles in 50.32, No. 4 on Oregon's career list.

The UO men went over the top in the 5,000 when Edward Cheserek and Eric Jenkins coasted across the finish line in first and second. Cheserek's winning time was 13:45.25. Jenkins finished in 13:45.33. Teammates Will Geoghegan and Jake Leingang were fifth and sixth respectively.

Who saw all of that coming?

Even the UO coaches weren't sure. They convened a meeting with the Ducks on Saturday night.

"We gave them the facts," Johnson said. "Everybody has these dope sheets, and we have to exceed those."

Which is how it played out. The Ducks, Leblanc said, wanted to represent.

"We couldn't take this Pac-12 title for granted," she said. "In past years we've had the chance to go in with a cushion. People didn't need to double, triple, whatever. This one was a fight.

"The motto for the week was, 'Be Oregon.'"

Which, Johnson said, means living up to the school's track & field tradition.

"For them to do what they did today definitely harkens back to some of those great teams Oregon has had," he said.

The women took it to the wire.

The Ducks led USC 177-172 going into the 4x400. The Trojans had the league's top-seeded relay. Assuming a USC victory, Oregon need to finish third or better to win the meet outright.

Johnson pulled the members of his 4x400 - Rogers, Christian Brennan, Leblanc and Horsley -- together on an adjacent field before the race.

"We talked about how we had to be third or better," Johnson said. "Those are the facts of the meet. Now let's flush that thing down the stool and see if we can't try to win this thing."

The Ducks needed third, and finished second.

It figures. They were better than expected all the way.

Here are the complete results from the Pac-12 Championships.

-- Ken Goe

kgoe@oregonian.com

503-221-8040 | @KenGoe