Sean West did not allow a hit until the seventh inning in his fourth career start and Brett Carroll hit his first career home run to help Florida Marlins beat Randy Johnson and the San Francisco Giants 4-0 Monday night.

West (1-1) allowed one baserunner, a leadoff walk to Andres Torres in the third, through the first six innings. Edgar Renteria then lined a single to left on West’s first pitch of the seventh.

West gave up two hits, one walk and struck out six in eight innings.

Johnson (5-5), pitching on short rest, four days after he earned career victory No. 300 at Washington, allowed three runs, seven hits, three walks and struck out five in five innings.

Carroll hit a three-run homer in the second to give the Marlins a 3-0 lead. He also singled and tripled for the Marlins, who earned a split of the four-game series. Leo Nunez pitched a scoreless ninth.