GARDENA - The San Pedro High baseball and softball teams both opened off Marine League play at Gardena right next to each other on separate fields, and both debuts produced short-lived, dominant victories.

Michael Samperio crushed a lead off double and a grand slam home run at the very beginning of the game as San Pedro baseball scored ten first-inning runs en route to a 16-5, five-inning victory over the host Panthers. Samperio finished 4-for-5 with five RBIs and four runs scored for San Pedro (11-5 overall, 1-0 league), who also got a two-run home run from Jonathan Gonzalez. The Pirates will host Gardena on Friday at the RBI Field in Compton.

Meanwhile, the softball team blanked Gardena in a 17-0, five-inning win.

Michelle Corona went 2-for-4 with 3 RBIs and two runs scored, Doreen Corella went 3-for-4 with a run scored, while Taylor Richter went 2-for-3 with an RBI and two runs scored. Pitchers Jaclyn Rivera and Jocelyn Kondash combined on a one-hitter and struck out nine for the Pirates (9-7, 1-0). Rivera started and picked up the win with six strikeouts in three innings of work.

San Pedro softball resumes Marine League play on Friday at Washington Prep of Los Angeles.