The Astros were in Seattle for the first of three games in the big matchup against the Mariners. Here's the breakdown of the game:

Final Score: Astros 10, Mariners 6

Record: 9-5, second in the AL West.

Winning pitcher: Brad Peacock (2-0).

Losing pitcher: Shawn Armstrong (0-1).

Stars of the game: Jose Altuve and Yuli Gurriel both had clutch grand slams which pushed Houston over the top in the win. Altuve's slam flipped the game from a 3-2 Mariners lead to 6-3 Astros lead and extended his streak to four consecutive games with a homer. Gurriel's slam stopped the momentum of the Mariners who had gotten within a run in the previous inning.

Notes: After the Astros went down in order in the top of the first, Wade Miley struggled in the bottom of the inning, giving up a run on three hits and a walk on 41 pitches, all in the first inning. Seattle extended the lead to 3-0 in the second, getting a two-out, two-RBI single to shallow center field, just out of Jake Marisnick's diving grasp. George Springer got the Astros back in it in the top of the third, blasting a two-run homer to trim the deficit to one run. After the first and second inning struggles, Miley's pitch count was high after four innings, resulting in Brad Peacock making an appearance from the bullpen to take over in the 3-2 game in the fifth, keeping the one-run game in play. The Astros did damage against Seattle's bullpen in the top of the sixth, loading the bases for Jose Altuve who continued his home run streak by launching a grand slam to double up the Mariners at 6-3. Seattle would battle back in the bottom of the seventh, scoring one run on a wild pitch from Peacock then getting an RBI groundout to get back within a run at 6-5. Houston wanted to give their bullpen more room to work with, and proceeded to load the bases in the top of the eighth to set up the second grand slam of the night, this time from Yuli Gurriel to make it a 10-5 advantage. Peacock faced one more batter in the bottom of the eighth, then Chris Devenski finished that inning off before continuing in the ninth. After a solo home run from the Mariners along with getting a couple of runners on against Devenski, A.J. Hinch left nothing to chance, going to Roberto Osuna to get the final out to lock up the win.

Up next: After breaking the Mariners' winning streak on Friday night, the Astros will look to lock up the series win and extend their own winning streak to 8 with a win on Saturday night. First pitch will be at 8:10 PM and will feature Justin Verlander on the mound for Houston and Felix Hernandez for Seattle.