With the impressive win in the opener to start the series, the Astros entered Saturday's middle game against the Giants with an opportunity to not just secure the series but surpass San Francisco for the best record in the league. They'd have to wait to take that crown, as the Giants would out-slug the Astros to even the series.

Final Score: Giants 8, Astros 6

Astros' Record: 64-41, first in the AL West

Winning Pitcher: Jay Jackson (2-0)

Losing Pitcher: Blake Taylor (2-3)

Teams trade blows early, Giants chase Greinke out early

The teams traded blows early in this one, with the Giants tagging Zack Greinke with six runs, all on homers. The first was a solo shot in the bottom of the second to start the scoring before hitting one in each inning through the fourth: two-run blasts in the third and fourth, then a go-ahead solo shot in the bottom of the fifth, putting them ahead 6-5 at the time. Greinke would face one more batter, allowing a single to end his lackluster day: 4.0 IP, 8 H, 6 R, 4 ER, 2 BB, 4 K, 4 HR, 93 P.

Houston's offense kept things close to try and keep Greinke in a position to win, going up 3-1 in the third on a two-run Aledmys Diaz homer and another coming in on an error. After San Francisco scored four unanswered to make it 5-3, Diaz homered again in the top of the fifth to cut the deficit to one run before Yuli Gurriel would tie it with an RBI double.

Astros stay in it, but Giants even the series by winning the slug-fest

With Greinke exiting with no outs in the fifth, Houston handed the ball to Phil Maton, acquired in the recent Myles Straw trade, to make his debut for his new team. He worked himself into a jam, allowing a single and hitting a batter to load the bases with one out, but was able to get back-to-back strikeouts to strike out the side and strand all three runners, keeping it a one-run game.

That proved pivotal in the top of the sixth, as with two outs, Martin Maldonado would launch a game-tying solo homer, making it 6-6. Blake Taylor took over out of the bullpen in the bottom of the inning but would face just three batters, getting two outs while leaving one on as Dusty Baker moved on to Cristian Javier. Javier would watch the Giants retake the lead, getting back-to-back singles to bring in a run and make it 7-6.

Javier stayed in the game in the bottom of the seventh, allowing a leadoff single but erasing it by striking out the next three batters. Still a 7-6 game in the bottom of the eighth, Yimi Garcia made his Astros debut but did not keep the score there, allowing a leadoff solo homer to make it a two-run game. The 8-6 score would go final as Houston's offense came up empty again in the top of the ninth, setting up a rubber game in the finale.

Up Next: The series finale will get underway at 3:05 PM Central on Sunday in San Francisco. Luis Garcia (7-5, 3.19 ERA) will take the mound for Houston, going opposite Logan Webb (4-3, 3.36 ERA) for the Giants.