The Rio Mesa High boys’ basketball team...

The Rio Mesa High boys’ basketball team has a chance to improve on its 4-0 Channel League record when it plays at Ventura High tonight at 7:30 p.m.

Rio Mesa (10-3 overall) will have to contend with Ventura guard Christian Gallagher, who leads the Cougars (8-7, 2-2) with a 19.8 scoring average.

Other events in the region today include:

Men’s basketball: At 7 p.m., Mt. San Jacinto at Antelope Valley. At 7:30 p.m., Pepperdine at Loyola Marymount, Pomona-Pitzer at Cal Lutheran, West L.A. at Oxnard, Valley at Moorpark, Santa Monica at Ventura.

Women’s basketball: At 5:15 p.m., Pepperdine at Loyola Marymount. At 5:30 p.m., Pierce at Oxnard, Santa Monica at Ventura, Valley at Moorpark.

Boys’ basketball: At 3:30 p.m., Dunn at Villanova Prep. At 4 p.m., Monroe at Poly, Grant at Van Nuys, Canoga Park at Reseda, El Camino Real at Chatsworth, Kennedy at San Fernando, Cleveland at Granada Hills, Taft at Birmingham, Hollywood at Verdugo Hills. At 7 p.m., Chaminade at Crespi, San Marino at La Canada, St. Francis at Notre Dame. At 7:30 p.m., Simi Valley at Agoura, Thousand Oaks at Royal, Camarillo at Newbury Park, Westlake at Channel Islands, Bishop Diego at Oak Park, Carpinteria at St. Bonaventure, San Marcos at Buena, Hueneme at Oxnard, Rio Mesa at Ventura. At 8 p.m., Harvard-Westlake vs. Alemany at L.A. Baptist.

Girls’ basketball: At 4 p.m., Reseda vs. North Hollywood at North Hollywood Park, Poly at Grant, Sylmar at Monroe, Van Nuys at Canoga Park, Birmingham at Kennedy, San Fernando at Taft, Verdugo Hills at Hollywood, Sherman Oaks CES at Elizabeth. At 5 p.m., Granada Hills at El Camino Real, Chatsworth at Cleveland. At San Marino at La Canada.

Boys’ soccer: At 2:30 p.m., Monroe at Canoga Park, Grant at North Hollywood, Van Nuys at Poly, Reseda at Sylmar, Sherman Oaks CES at Bravo Medical. At 3 p.m., Antelope Valley at Littlerock, Quartz Hill at Lancaster, Palmdale at Highland. At 3:30 p.m., San Marino at La Canada, Malibu at Nordhoff, Santa Clara at Calabasas. At 5 p.m., St. Francis at Notre Dame, Chaminade at Crespi, Harvard-Westlake at Alemany. At 5:30 p.m., Agoura at Simi Valley, Royal at Thousand Oaks, Channel Islands at Westlake, Newbury Park at Camarillo.

Girls’ soccer: At 2:30 p.m., Palisades at Chatsworth, San Pedro at Grant, Granada Hills at El Camino Real, Kennedy at Birmingham, Canoga Park at Cleveland, Sherman Oaks CES at Verdugo Hills, La Reina at St. Bonaventure, Thousand Oaks at Royal. At 3:15 p.m., Alemany at Harvard-Westlake, Fillmore at Oak Park. At 3:30 p.m., Calabasas at Santa Clara, Malibu at Nordhoff, La Canada at San Marino. At 5 p.m., Louisville at Chaminade, Alemany at Harvard-Westlake, Notre Dame vs. Flintridge Sacred Heart at St. Francis. At 5:30 p.m., Simi Valley at Agoura, Camarillo at Newbury Park.

Men’s tennis: At 1:30 p.m., St. Mary’s at Pepperdine.

Girls’ water polo: At 3:30 p.m., Harvard-Westlake at La Canada.

Wrestling: At 6 p.m., Moorpark at Fillmore. At 7 p.m., Quartz Hill at Highland, Antelope Valley at Littlerock.