Mike Yastrzemski, the 23-year-old switch-hitting son of former Boston Red Sox great Carl Yastrzemski, had three hits, including a two-run home run, to lead the visiting Durham Bulls over the Prince William Pirates, 9-1, in a Carolina League home opener before 1,109 last night at Davis Ford Park in Woodbridge.

Durham went ahead in the first when Yastrzemski walked and moved to second on Shawn Holman's wild pitch. Yastrzemski moved to third on Dave Griffin's single and scored on Bob Posey's sacrifice to right.

Although the Pirates outhit the Bulls, 8-7, the game ceased to be competitive in the Bulls' half of the third when Durham scored five runs.

Yastrzemski, who bats second in the order, plays right field and wears his father's No. 8, led off with a single. Griffin hit Holman's pitch over the left-center field wall to give Durham a 3-0 lead.

Holman then lost his control, walking Posey and Mike Nipper. He then threw an 0-2 pitch right down the center of the strike zone and shortstop Chip Childress pulled the ball over the right field fence.

Durham got two more runs in the fourth off Scott Neal when the reliever walked leadoff batter Flavio Alfaro, and Yastrzemski, batting from the right side, hit the ball over the left field wall.

The Bulls built another run when Durham pitcher Vince Barger, who struck out four and walked two to earn the victory, let off the sixth with a double to left.

After a walk to Alfaro, Yastrzemski's single moved the pitcher to third. Barger came home when Neal walked Chris Baird.

The Pirates got their lone run in the sixth. Dimas Gutierrez, who finished with two hits, singled, moved to second on a wild pitch and came home on Steve Barnard's double.