Brigham Young University's men's track and field team, especially members of the weight brigade, had a smashing afternoon Saturday, sweeping three events and placing first in six others while competing against USC and Iowa in a non-scoring meet.

Freshman hammer thrower Per Karlsson lead the way for a BYU sweep in that event with a throw of 210-6 and also placed first in the shot put with a 51-5 1/2. Decathletes Scott Peterson and Dave Draney placed one-two in the javelin, with teammate Karlsson taking third.BYU's third sweep came in the discus with Brent Patera (175-1), Jack Mohr (154-9) and Karlsson (145-6) finishing in that order.

"We performed extremely well," said BYU Coach Willard Hirschi. "I was particulary pleased with the performance of Frank Fredericks in the 100 and 200, as well as Karlsson in the weight events."

Other BYU winners: Ted Mecham in the steeplechase (8:51.2), shaving six seconds off his best time of the season; Fredericks in the 100 (10.39) and 200 (20.5); Russ Muir in the 800 (1:48.7), a season's best; and Lane White in the pole vault (16-4 3/4) with twin Lance White placing second at 16-0.

Hurdler Shaun McAlmont had to settle for second place in both the 110 and 400 meters (14.41 and 50.6). Although he didn't win the 400, McAlmont's time of 50.6 was good enough to qualify him for the NCAA Outdoor Championships.

Steeplechaser Paul Rosser placed second to Mecham in his specialty, clocking a respectable 8:54.9 over a previous season's best of 9:08.83.

"Paul's improvement is phenomenal," said BYU Coach Willard Hirschi. "He is really running well."

Next week the Cougars host their first outdoor meet of the season, the BYU Invitational, involving two other Utah Schools and Montana.

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Also in Los Angeles, in oppressive heat on Cromwell Field during the USC Centennial Track Invitational Saturday afternoon, BYU women's All-American Hui-Chen Lee qualified for the NCAA championships in the javelin throw with a 175-11 mark.

She easily surpassed the NCAA qualifying standard of 168-0.

Lee and six of her Cougar teammates won seven events out of the 17 contested at the meet.

In team scoring, USC edged BYU 69 to 66 without the 5000 meters figuring into the results. Had the 5000 counted as BYU coaches assumed it would, the Cougars would have won 75 to 69.

Other Cougar tracksters winning events were Alisa Wise in the triple jump (36-3 1/2); Angela Lee, 5000 meters (18:07.3); Lisa White, shot put (44-2 1/2); Susan Christensen, 100m hurdles (14.13); Christy Opara, 100 dash (11.91); and Nicole Birk, 3000 meters.

Opara was just four hundredths of a second off NCAA qualifying time in the 100.

The Cougar team confirmed its strength by picking up second places in six events - Chris Wilson, high jump (5-9 3/4); Sheri Jo Coleman, triple jump (35-9 1/2); Anna Mosdell, shot put (42-1 1/4); Cathy James, discus (157-1); Georgia Palmer, 800 (2:10.50); and Maxine Scringer, 400m hurdles (1:01.0).