SAN FRANCISCO — The San Francisco Giants rode a dominant start from Logan Webb and a breakout performance from Drew Gilbert to a convincing 7-1 victory over the Colorado Rockies on Saturday night at Oracle Park. Webb, improving to 8-7 on the season, scattered four hits over six innings, struck out seven, and walked none. The milestone moment came in the second inning when he fanned Zac Veen swinging on a four-seam fastball, recording the 1,100th strikeout of his career. The right-hander showed no signs of fatigue even after taking a comebacker off his right shoulder in the fifth inning. After a visit from the training staff, Webb remained in the game and completed the sixth before handing the ball to the bullpen. Gilbert, the Giants' rookie outfielder, provided the early spark. In the third inning, he launched a solo home run just over the right-field wall to put San Francisco on the board. The Giants' offense exploded in the fourth inning, sending 10 batters to the plate and scoring six runs. The rally began with Turner Hill, making his major league debut, delivering a sacrifice fly with the bases loaded. Gilbert then followed with a two-run single, chasing Rockies starter Michael Lorenzen. Lorenzen (3-11) lasted only 3 2/3 innings, surrendering four hits, six earned runs, and three walks on 82 pitches. The damage continued against reliever Parker Mushinski. Rafael Devers ripped a ground-rule double down the left-field line, driving in another run. Mushinski then uncorked a wild pitch that allowed Gilbert to score from third. Bryce Eldridge capped the inning with an RBI single, giving the Giants a 7-1 lead. Colorado’s lone run came in the third inning when Cole Carrigg grounded out to bring home a runner from third. The Rockies managed just five hits total and saw their three-game winning streak halted. Webb’s exit after the sixth brought Carson Seymour, who tossed two scoreless innings, allowing only one hit. Dylan Smith closed out the ninth inning without incident. Jung Hoo Lee contributed two hits and a walk for the Giants, who recorded double-digit hits for the fifth time this season. The Giants and Rockies will wrap up the three-game series on Sunday. San Francisco sends right-hander Blade Tidwell (0-0, 2.78 ERA) to the mound against Colorado’s Gabriel Hughes. First pitch is scheduled for 1:05 p.m. PT.