Adam Rosales hit a two-out homer in the top of the 10th inning, and the Oakland Athletics had a season high four home runs in a 5-4 win over the Chicago White Sox on Thursday night.
Rosales' fourth homer of the season came off White Sox reliever Matt Thornton (0-2), a 1-1 pitch that was just fair to left field.
Yoenis Cespedes hit two home runs for the second time in three games. Josh Reddick also connected. All four homers were solo shots.
A's reliever Jerry Blevins got the win (5-0) while Grant Balfour earned his 14th save in as many attempts.
The A's have won six of seven and 17 of 20. Oakland is 12-2 during a 17-day stretch without a day off.
The White Sox have lost nine of their last 10 games and have been outscored 47-26 in their last nine games. Chicago has lost all four games against Oakland this season.
White Sox starter Jose Quintana went 7 2-3 innings, giving up four runs on seven hits. he did not walk a batter but gave up three home runs.
Oakland starter Dan Straily pitched seven innings, gave up four runs on six hits, walked two and struck out three.
After Straily retired the first seven batters he faced, the White Sox scored three runs in the bottom of the third.
Gordon Beckham singled to center, but was forced at second when Tyler Flowers hit into a fielder's choice. Alejandro De Aza doubled down the right field line, scoring Flowers.
Alexei Ramirez's bloop single to short center scored De Aza. Ramirez then stole second, moved to third on a wild pitch by Straily and scored on Alex Rios' single to center.
The A's broke up Quintana's perfect game with two outs in the fourth when Cespedes drove a 1-1 pitch into the left-center stands to make it 3-1.
Oakland closed the gap to 3-2 in the top of the fifth when Nate Freiman led off with a single to center and scored on Rosales' double just inside the third base line.
Beckham led off the fifth with a walk, Flowers' double pushed Beckett to third and De Aza singled to score Beckham.
Oakland again closed Chicago's lead to one run in the sixth when Cespedes hit his second homer of the game — and 13th this year — a one-out drive to right-center.
The A's tied it at 4 in the seventh on Reddick's longball to right field, his second of the season.
The White Sox played without manager Robin Ventura, who was excused from Thursday and Friday's games to attend his daughter's graduation in California. Bench coach Mark Parent filled in for Ventura on Thursday, while pitching coach Don Cooper will manage Friday.