It’s a tall order, but Chaminade High...

It’s a tall order, but Chaminade High will attempt to become the first California boys’ basketball team to defeat Harvard-Westlake when the Mission League rivals meet at 7 tonight at Chaminade.

With a victory, Chaminade (17-5, 8-1 in league play) can gain a share of first place and earn a season split with Harvard-Westlake (25-1, 9-0). The Wolverines defeated Chaminade, 78-40, on Jan. 17 at Harvard-Westlake.

Harvard-Westlake, ranked No. 1 in the state by Cal-Hi Sports, has lost only to Mt. Zion Christian of Durham, N.C., a national power, in the Reebok Holiday Classic in Las Vegas in December.

Other events in the region today include:

College baseball: At 2:30 p.m., Azusa Pacific at The Master’s.

Women’s basketball: At 5:30 p.m., Antelope Valley at San Bernardino Valley. At 7 p.m, St. Mary’s at Pepperdine. At 7:30 p.m., San Diego at The Master’s, Claremont Mudd-Scripps at Cal Lutheran.

Women’s tennis: At 2 p.m., Cal Lutheran at La Verne.

Boys’ basketball: At 4 p.m., Verdugo Hills at Hollywood.

At 7 p.m. Harvard-Westlake at Chaminade, Kennedy at Cleveland, Monroe at Canoga Park, Grant at North Hollywood, Sylmar at Van Nuys, Poly at Reseda, Taft at Chatsworth, Birmingham at El Camino Real, San Fernando at Granada Hills, Notre Dame at Crespi, Cathedral at Bell-Jeff, Saugus at Burbank, Hart at Valencia, Canyon at Burroughs, Alemany at Loyola.

At 7:30 p.m. Crescenta Valley at Arcadia, Monrovia at La Canada, Providence at Holy Martyrs, Paraclete at Desert, Antelope Valley at Lancaster, Palmdale at Littlerock, Quartz Hill at Highland, Agoura at Simi Valley, Newbury Park at Camarillo, Channel Islands at Westlake, Royal at Thousand Oaks, Oxnard at Hueneme, Ventura at Rio Mesa, Buena at San Marcos, Nordhoff at Santa Clara, Calabasas at Moorpark, Santa Paula at Malibu, Bishop Diego at Fillmore, Carpinteria at Oak Park.

Girls’ basketball: At 4 p.m., Reseda at Sylmar, Van Nuys at Grant, Canoga Park at Poly, Granada Hills at Birmingham, El Camino Real at Taft, Chatsworth at Kennedy, Hollywood at Verdugo Hills, North Hollywood at Monroe.

At 5 p.m. Cleveland at San Fernando.

At 5:45 p.m., Crescenta Valley at Arcadia, Glendale at Hoover.

At 6 p.m., Monrovia at La Canada, Providence at Holy Martyrs, Paraclete at Desert.

At 6:30 p.m., Santa Clara at Nordhoff, Malibu at Santa Paula, Moorpark at Calabasas.

At 7 p.m., Notre Dame at Crespi, Burbank at Saugus, Burroughs at Canyon, Valencia at Hart, Maranatha at L.A. Baptist.

At 7:30 p.m., Marshall Fundamental at Village Christian.

Boys’ soccer: At 2:30 p.m., Canoga Park at Monroe, North Hollywood at Grant, Poly at Van Nuys, Sylmar at Reseda, Thousand Oaks vs. Royal at Rancho Simi Community Park, Saugus at Burbank, Westlake at Channel Islands. At 3 p.m., Hart at Valencia, Quartz Hill at Highland, Antelope Valley at Lancaster, Palmdale at Littlerock, Moorpark at Nordhoff, Santa Clara at Malibu, Calabasas at Santa Paula, Monrovia at La Canada. At 4 p.m. Saugus at Burbank, Mojave at Paraclete. At 4:30 p.m., Canyon at Burroughs. At 5 p.m., Notre Dame at Crespi, Harvard-Westlake at Chaminade, Notre Dame at Crespi. At 5:30 p.m., Camarillo at Newbury Park, Simi Valley at Agoura.

Girls’ soccer: At 2:30 p.m., Kennedy at Canoga Park, Sherman Oaks CES at Birmingham, Granada Hills at Chatsworth, Grant at El Camino Real, Oak Park at Carpinteria, Verdugo Hills at Cleveland. At 3 p.m., Burbank at Saugus, Valencia at Hart. At 3:15 p.m., Chaminade at Harvard-Westlake, Fillmore at St. Bonaventure. At 3:30 p.m., La Canada at Monrovia, Malibu at Santa Clara. At 4:30 p.m., Nordhoff at Moorpark, Burroughs at Canyon. At 5 p.m., Calabasas at Santa Paula, Louisville at Notre Dame. At 5:30 p.m., Newbury Park at Camarillo, Agoura at Simi Valley, Royal at Thousand Oaks.

Girls’ water polo: At 3 p.m., Burroughs vs. Louisville at Pierce College. At 3:15 p.m., Newbury Park at Agoura. At 3:30 p.m., Alemany at Harvard-Westlake.