Michael Phelps, who lives in Fells Point, and Katie Hoff of Towson won gold medals Sunday night at the Southern California Grand Prix in Long Beach. Phelps held off Japan's Hidemasa Sano in the 400-yard individual medley to take home his second gold of the meet. Phelps finished in 3 minutes, 38.42 seconds; Sano's time was 3:39.63. Hoff won the 400IM in a meet-record-4:04.39, edging Ariana Kukors (4:06.04). Hoff was second in the 200 freestyle, finishing in 1:44.48; Dana Vollmer of Granbury, Texas, won in 1:43.29, and Elizabeth Pelton of Ruxton was third in 1:45.52.