SAN FRANCISCO (Interstat) — The San Francisco Giants erupted for a six-run fifth inning Saturday afternoon at Oracle Park, turning a tie game into a 10-3 victory over the Chicago White Sox before 40,172 fans in 2 hours, 47 minutes.

The win allowed the Giants to split the first two games of the three-game series after dropping the opener 9-4 a afternoon earlier. San Francisco improved to 21-31, while Chicago fell to 26-25.

Losing pitcher Erick Fedde took the loss, his fifth in as many decisions this season. The White Sox right-hander allowed six runs on eight hits over 4 2/3 innings, walking two and striking out four. Fedde left with the score still 3-3 in the fifth, but the bullpen could not hold the line.

Reliever Matt Gage earned the win, his fourth against one loss, after tossing a scoreless inning of relief. The Giants used four pitchers overall, with Joel Peguero turning in two shutout innings of two-hit relief and Sam Hentges striking out two in a perfect inning.

For the White Sox, the game had started with promise. Rookie starter Adrian Houser kept Chicago off the scoreboard for the first three innings, allowing only two hits. The White Sox managed just three baserunners through the first four frames, all on singles, and Houser worked out of a two-on, one-out jam in the fourth.

But the game turned in the bottom of the fourth when the Giants finally broke through against Fedde. With one out, Luis Arraez tripled to right field, and Casey Schmitt followed with a sacrifice fly to deep right, scoring Arraez to make it 1-0 San Francisco. Rafael Devers singled, Matt Chapman singled, and Daniel Susac lined a two-run single to left, scoring Devers and Chapman to tie the game.

Bryce Eldridge singled to put runners at first and second, but Fedde struck out Harrison Bader and got Drew Gilbert to ground out, limiting the damage to three runs. The score stood at 3-3.

The White Sox answered immediately in the top of the fifth. Jarred Kelenic led off with a double to left center off Houser. Tristan Peters singled, sending Kelenic to third, and Drew Romo singled to right, plating Kelenic to give Chicago a 4-3 lead. Sam Antonacci then grounded into a force out, scoring Peters as Romo was erased at second. After Munetaka Murakami struck out, Miguel Vargas doubled sharply to center, scoring Antonacci to push the lead to 6-3. Houser struck out Colson Montgomery to end the inning, but the damage was done.

That three-run outburst by Chicago proved to be its last scoring of the night. Houser departed after 5 innings, allowing three runs on six hits with five strikeouts and one walk.

The Giants then seized control in the bottom of the fifth, an inning that began quietly. Willy Adames flied out to center, but Arraez singled to right. Schmitt followed by crushing a 2-1 fastball from Fedde deep to left field for a two-run homer, his 10th of the season, cutting the deficit to 6-5.

Fedde was lifted after that, with reliever Jordan Leasure entering. Leasure allowed a fly out by Devers, but Chapman doubled on a pop up that fell in shallow left field. Daniel Susac walked, and Bryce Eldridge also walked to load the bases. That brought Harrison Bader to the plate, and he launched a grand slam to center field, his fifth home run of the year, clearing the bases and giving the Giants a 9-6 lead.

Bader went 2 for 4 with four RBIs, pacing the Giants offense. Schmitt finished 2 for 4 with three RBIs, while Chapman was 2 for 3 with a double and two walks. Eldridge also had two hits.

The Giants added a solo home run from Adames in the eighth, his sixth of the season, to make it 10-6.

Chicago’s batters collected 10 hits over the game but stranded 10 runners. Vargas had two hits and an RBI, while Romo drove in a run and Peters had two hits. Sam Antonacci, who played left field, scored a run and drove in one.

The White Sox threatened in the ninth when Randal Grichuk singled and Derek Hill singled, putting two on with no outs. But Romo grounded into a double play, and Antonacci grounded out to third to end the game.

San Francisco outhit Chicago 14-10, with Arraez and Eldridge each collecting two hits. Adames, Gilbert and Devers each chipped in one hit.

The win was a needed boost for a Giants team that had lost seven of its previous 10 games. It was also a measure of revenge after the White Sox had handed them a 9-4 loss on Friday.

For the White Sox, the defeat snapped a two-game winning streak. They had opened the road trip with a 2-1 victory over Seattle on May 19, followed by the win in the series opener against the Giants. The White Sox are now 26-25 and remain above .500, but their recent road form has been erratic, with losses in four of their last six away from home.

The game featured a pivotal fifth inning that turned the contest on its head. The White Sox had taken a three-run lead only to lose it in the bottom half. The Giants sent 10 batters to the plate in that inning, collecting four hits including the two homers. Bader’s grand slam was the decisive blow.

Defensively, both teams were solid for the most part. The White Sox turned a double play in the third inning. The Giants did not commit an error in the field.

The victory was also notable for the Giants in that it marked one of their few high-scoring outings this season. San Francisco had scored three runs or fewer in 15 of its previous 20 games. The 10 runs tied a season high for the Giants, matching the 10 they scored against the Athletics on May 17.

The White Sox will look to bounce back in the series finale Sunday, with first pitch scheduled for the afternoon. The Giants will aim to win the series and build some momentum heading into a four-game homestand against the Arizona Diamondbacks.

The game action included several overturned calls. In the sixth inning, the White Sox successfully challenged a call at first base, overturning a safe call and resulting in an out. In the second inning, the Giants challenged a pitch result, and the call on the field of a strikeout was confirmed.

Interstat’s game simulator had projected a final score of Chicago White Sox 6, San Francisco Giants 4. Interstat’s ELO system gave San Francisco a 58.5 percent probability to win. Chicago had been installed as a pregame favorite with a spread of minus 1.5 runs. The total score of 13 went under the over/under line of 8.