USTA PACIFIC COAST MEN'S DOUBLES—Feb. 29-March 2. Top NCAA teams from Rice, Texas A&M, Stanford, UCLA, Cal, USC and Pepperdine compete at La Jolla Beach & Tennis Club. Free. 2000 Spindrift Drive, La Jolla, 858.551.4680. Map V20

california ironman triathlon—March 29. Featuring a 1.2-mile swim, 56-mile bike ride and 13.1-mile run. Oceanside Harbor, 1540 Harbor Drive N., Oceanside, 888.280.9097, ext. 27. Map S22

SAN DIEGO CREW CLASSIC 34th regatta—April 5-6. University rowing clubs from across the country compete. Crown Point Shores and Lamont Street, Crown Point, 619.225.0300. Map I8

san diego padres—Major League Baseball. March 31-April 3: Houston; April 4-6: L.A. Dodgers; April 15-17: Colorado; April 23-24: San Francisco; April 25-27: Arizona; May 9-11: Colorado; May 19-21: St. Louis; May 22-25: Cincinnati; May 27-29: Washington; Petco Park, 100 Park Blvd., downtown, 619.795.5000. Map Q16

63Rd annual del mar national horse show—April 17–May 4. Prestigious equestrian event includes international championship riders, dressage and Western hunter-jumper competitions. Del Mar Fairgrounds, 2260 Jimmy Durante Blvd., Del Mar, 858.792.4288. Map X22

27th annual la jolla half marathon—April 27. Begins at Del Mar Fairgrounds and ends at La Jolla Cove, 2260 Jimmy Durante Blvd., Del Mar, 858.454.0777. Map X22

STAN HUMPHRIES CELEBRITY GOLF CLASSIC—April 23-27. John Elway, Adrian Young, Marcus Allen and more play 10th annual charity golf event. Morgan Run Resort, 5690 Cancha De Golf, Rancho Santa Fe, 858.836.0133. Map W23