SAN FRANCISCO -- Both the San Francisco Giants and Oakland A's used Thursday night's Bay Bridge Series opener as an opportunity to test-drive their respective lineups. Neither team delivered high-performance offense, as Jeff Samardzija led a procession of effective pitchers in San Francisco's 3-1 exhibition triumph.
Samardzija worked five innings, retiring 15 consecutive batters after Billy Burns smashed a leadoff triple off the right-field wall. The Giants' projected No. 3 starter had pitched progressively better in his six starts but still entered this game with a 7.20 spring ERA.
"Keep working and you get a day like this where it all comes together," said Samardzija, who walked none and struck out five.
The Giants scored in three consecutive innings after breaking a scoreless tie in the fourth, when Hunter Pence doubled and came across on Brandon Crawford's two-out single. Buster Posey and pinch-hitter Ehire Adrianza added RBI singles in the fifth and sixth, respectively.

Giants manager Bruce Bochy kept most of his regulars in for the entire game, contrasting with the approach he took in Cactus League games.
"They need to play," Bochy said, eyeing Monday's season opener at Milwaukee.
A's manager Bob Melvin, who anticipates using various lineups at the season's outset, was curious about Thursday's version.
"We need to see how all the pieces fit," he said.
Oakland starter Chris Bassitt allowed one run and three hits in four innings, but the A's didn't score until the seventh, when pinch-hitter Billy Butler singled and Stephen Vogt tripled him home.

A's Up Next: Melvin said he anticipates using a lineup in Friday night's 7:15 p.m. PT rematch against the Giants that will include five players who didn't start Thursday. On the mound, Kendall Graveman will make his sixth exhibition appearance and fifth start.
Giants Up Next:Jake Peavy will make his final tuneup before starting Thursday's home opener against the Dodgers. Bochy is expected to play the team's Opening Day starting lineup for the second straight game.