More Splash Hits spent the afternoon watching Giants pitching prospect Madison Bumgarner toss another solid outing in the Fresno Grizzlies’ 4-2 win over the Portland Beavers in Portland.

Also Sunday, we learned something new about Bumgarner: He’s got opposite-field power.

Bumgarner (1-1) gave up one run on four hits and three walks in five innings of work, earning the victory. He struck out three. Bumgarner also hit an opposite-field home run to right field off the Beavers’ Josh Geer in the third inning.

Bumgarner was lifted for a pinch-hitter in the top of the sixth after throwing 99 pitches.

The first two batters to single off Bumgarner on Sunday were erased when the left-hander picked them both off first base — Luis Durango in the first and Craig Stansberry in the second.

The third hit Bumgarner allowed was debatable. In the third, Sean Kazmar hit a chopper over the bag at third. Fresno’s Brad Boyer made a nice play to field the ball, but his throw was low and first basemen Brett Pill could corral the ball. It was ruled a hit. I might have scored it otherwise, but no one asked.

The lone run came in the fifth, when Chris Stewart drew a leadoff walk, was sacrificed to second and scored on Durango’s single to center.

Bumgarner had some difficulty locating his off-speed pitches, leading to some deep counts. Also, the Beaver hitters did a good job of fouling off two-strike pitches to prolong some at-bats and make Bumgarner work harder. Still, his fastball was consistently in the low 90s all afternoon, topping out several times at 93 mph on the stadium radar.

The Grizzlies belted three home runs: Bumgarner, Pill and Mike McBryde.

Catcher Buster Posey was 1 for 4 with a walk and two strikeouts.