(Corvallis, OR) -- The Beavers thumped the Ducks 72-57 Saturday in a Civil War clash at Gill Coliseum in Corvallis. Stephen Thompson Jr. led Oregon State with 22 points. Oregon State swept the series for the first time in nine years. It won the first encounter 77-72 last month in Eugene. OSU improved to 16-and-8 overall and are second in the Pac-12 with an 8-and-4 record. The Ducks dropped to 15-and-10 and 6-and-6. The Beavers will play Thursday at UCLA in Pauley Pavilion. Oregon will play Thursday at USC.