Spokane County Raceway: Rockstar Friday Night Drags, 6 p.m.
College: Oregon State at Washington State, 5:30 p.m.; Portland at Gonzaga, 6; Washington at Arizona State, 6:30; NCAA Division III Regional at McMinnville, Ore.: Whitworth vs. Concordia (Texas), noon.
High school: Idaho: 5A State at Boise Hawks Memorial Stadium: Highland vs. Lewiston, 9 a.m.; Coeur d’Alene vs. Idaho Falls, noon. 4A State at Rodeo Park, Nampa: Lakeland vs. Bonneville, 9 a.m. 3A State at Treasure Valley CC, Ontario, Ore.: Timberlake vs. Payette, 9 a.m.; St. Maries vs. Fruitland, 6 p.m.
Arena Football League: Philadelphia at Spokane, 8 p.m.
College men: NCAA Regionals at Norman, Okla., and Stanford, Calif.
College: NWAACC Championships at Portland: CC Spokane vs. Olympic, 11:30 a.m.
High school: Idaho: 5A State at Pocatello: Coeur d’Alene vs. Capital, 9 a.m.; Timberline vs. Lake City, 11. 4A State at Twin Falls: Kuna vs. Lakeland, 9 a.m. 3A State at Ramsey Park, Coeur d’Alene: St. Maries vs. South Fremont, 10 a.m.; Buhl vs. Timberlake, noon.
High school: Idaho: 5A State at Timberline HS, Boise, 4A State at Boise Racquet Club; 3A State at Vallivue HS, Caldwell.
Track and field
High school: Washington: 4A/3A Regionals at Richland HS, 3:30 p.m.; 1A Regionals at Cashmere HS, 4; 2A Regionals at Spokane Falls CC, 4:30; District 9 2B at Walla Walla. Idaho: 5A State at Rocky Mountain HS, Meridian; 4A State at Middleton HS; 3A State at Eagle HS, Meridian; 2A State at Centennial HS, Meridian; 1A State at Mountain View HS, Meridian; all 3 p.m.
Coeur d’Alene Casino: Horse racing, 9 a.m.; dog racing, 9:15. Greyhound Park & Event Center: Horse racing, 9:15 a.m.; dog racing, 5 p.m. Northern Quest Resort and Casino: Horse racing: 9 a.m.