SEATTLE (AP) — Randy Arozarena hit a solo home run and Luis Castillo threw 6 2/3 scoreless innings as the Seattle Mariners beat the Houston Astros 6-1 on Friday night. Arozarena hit an elevated fastball from Astros left-hander Brandon Walter (1-3) out to left-center field in the fourth inning for his 18th home run of the season. In the process, Arozarena became only the second player in the majors this season with 10 or more home runs over a 14-game stretch.