WEST SACRAMENTO, Calif. (Interstat) — Adrian Houser pitched six innings of four-hit ball and Harrison Bader hit a grand slam in an eight-run eighth inning as the San Francisco Giants routed the Athletics 10-1 on Sunday evening at Sutter Health Park.

Houser, who improved to 2-4, allowed one earned run, struck out three and walked three in a 99-pitch outing. He worked out of early traffic and benefited from a pair of double plays. The victory snapped a two-game losing streak for the Giants, who improved to 20-27. The Athletics fell to 23-23 after dropping the second game of the three-game series.

Jeffrey Springs started for the Athletics and matched Houser for six innings, allowing one earned run on five hits with three strikeouts. He took the loss, his fourth against three wins.

The game was scoreless until the third inning, when Luis Arraez led off with a home run to right field, his second of the season, giving San Francisco a 1-0 lead.

An inning later, the Giants added another run. Willy Adames reached on a throwing error by third baseman Zack Gelof, moved to second on a strikeout and scored on a double to center by Matt Chapman, Chapman’s 10th double of the year.

The Athletics answered in the bottom of the fifth. Darell Hernaiz singled with one out, advanced to second on a walk to Nick Kurtz and scored on a double to right-center by Carlos Cortes, cutting the deficit to 2-1. But Houser stranded Kurtz at third by getting Brent Rooker to line out to center.

After a quiet sixth inning, the San Francisco bullpen took over. Sam Hentges pitched a perfect seventh with two strikeouts, and Keaton Winn struck out one in a scoreless eighth.

The Giants broke the game open in the top of the eighth. With Athletics reliever José Suarez on the mound, Bader reached on a fielding error by Gelof. Arraez walked, and Casey Schmitt singled to load the bases. Rafael Devers singled to center, scoring Bader and Arraez, and the ball was misplayed by center fielder Lawrence Butler, allowing Devers to advance to second and Schmitt to third. Willy Adames singled to left, loading the bases again. Daniel Susac grounded out to second, scoring Schmitt, and Suarez intentionally walked Chapman to load the bases with one out. Drew Gilbert struck out, but Jung Hoo Lee singled to right, scoring Devers and keeping the bases loaded.

Bader then stepped in and launched a 1-1 pitch over the right-field wall for his fourth home run of the season, a grand slam that scored Adames, Chapman and Lee, making it 10-1. Arraez added a single but Schmitt flied out to end the inning.

Joel Peguero pitched a scoreless ninth for the Giants, allowing no hits and striking out one.

San Francisco finished with 12 hits, led by Arraez, who went 3-for-4 with a home run, a walk and an RBI. Chapman had two hits, including a double, and drove in a run. Bader went 1-for-4 with the grand slam and four RBIs. Devers had two hits and two RBIs.

The Athletics managed only five hits. Cortes had a double and an RBI for the home team. Springs gave up just one run over six innings but took the loss.

The victory evened the series after the Athletics won 5-2 on Friday and the Giants took the opener 6-4 on Saturday. San Francisco now heads to Arizona for a three-game set beginning Monday, while the Athletics travel to Los Angeles to face the Angels.

Houser’s line: 6.0 innings, 4 hits, 1 earned run, 3 walks, 3 strikeouts. He threw 99 pitches, 58 for strikes. Springs went 6.0 innings, allowing 5 hits and the one earned run, walking none and striking out three, throwing 86 pitches.

The Giants’ bullpen combined for three scoreless innings, allowing one hit and striking out four. Hentges struck out two in the seventh, Winn struck out one in the eighth, and Peguero retired the side in order in the ninth.

The Athletics used four relievers. Carlos Cortes pitched a scoreless seventh, allowing one hit. Justin Sterner pitched a perfect eighth with no hits and no strikeouts. Suarez was charged with eight runs, seven earned, in two-thirds of an inning, walking two and allowing five hits. Alika Williams pitched a scoreless ninth, allowing a double and a walk but no runs.

The game lasted 2 hours, 45 minutes before an announced crowd of 12,541.

Interstat’s game simulator had projected a final score of Athletics 6, San Francisco Giants 5. Interstat’s ELO system projected the Athletics with a 52.70 percent probability to win. The Athletics were installed as a pregame favorite with a spread of minus-1.5. The total score of 11 went under the over-under line of 10.