DES MOINES, Iowa -- LSU won its 15th championship in 31 years on Saturday at the NCAA track and field meet.

The SEC sweep snapped a three-year title run by Texas A&M -- and the Aggies join the league next fall.

LSU and Oregon entered Saturday tied at 40, but the Tigers jumped out to a big lead after Kimberlyn Duncan won the 200 meters, leaving the Ducks as the runners-up for the fourth year in a row.

Results: Men | Women
Recaps: Day 1 | Day 2 | Day 3 | Day 4
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Schedule of Events

LSU opened up a five-point edge after the opening event, as the Tigers won the 400-meter relay in 42.75 behind a strong anchor leg by Duncan. That win followed a victory by the LSU men in the 400 relay, giving the Tigers the first 400 relay sweep since they also did it in 2003.

The Ducks had a chance to make up serious ground in the 1,500, but Jordan Hasay finished third by a hundredth of a second and Becca Friday placed ninth. Hasay briefly gave Oregon a 51-50 lead that could have been more. Washington's Katie Flood, won in 4:13.79.

LSU got the lead right back behind Duncan, who defended her title in the 200 in 22.86. Teammate Semoy Hackett finished fifth, giving the Tigers 14 points as they pulled away from the Ducks and everyone else.

Oregon had one last shot at the Tigers in the 5,000 meters, but a pair of Ducks combined for just one point to clinch the title for LSU. Texas A&M finished third, but 38 points behind its future league rivals.