After a perfect six-game homestand, the Astros began their second road trip of the season in Seattle versus the Mariners, who hold the best record in baseball. The Mariners came into the series with a six-game win streak of their own.
Friday night Altuve was at it again. With the team down one run in the sixth inning, he hit a grand slam to give the Astros a 6-3 lead. After Seattle scored two runs in the seventh to make it 6-5, Yuli Gurriel hits the second grand slam of the night for the Houston, putting them up 10-5.