Celebrity Softball Saturday

* The Celebrity Sports Classic game and auction will benefit the Girls Club of Santa Monica. The celebrity roster, which includes Dirk Benedict, Patty Brooks, Fred Willard and Jim Carey, will compete against a corporate team that includes KRTH radio and Santa Monica Bank. 2 p.m. Los Amigos Park, 5th Street and Ocean Park Boulevard, Santa Monica. $3 admission; $10 fee includes post-game party at the Improv, 3rd Street and Santa Monica. (213) 395-3067.

Old Homes Tour

Sunday

* The Monrovia Old House Preservation Group hosts a tour through nine historic sites. Vintage cars, craftspeople who specialize in restoration and renovation, antique bicycles, entertainment. 10 a.m.-4 p.m. $10; seniors 65 and older and children 12 and under, $5; 5 and under free. Purchase tickets at the Anderson House, 215 E. Lime Ave., Monrovia. Lunch available. No spiked heels or smoking. Pre-tour tickets $8. (818) 357-3797.