OAKLAND, Calif. (AP) Bartolo Colon won for the first time in more than a month, Seth Smith homered during a seven-run third inning and the Oakland Athletics beat the Houston Astros 7-2 on Sunday.
Brandon Moss had three hits and drove in two runs while Yoenis Cespedes added two hits and an RBI for the AL West-leading A's.
Oakland won the final three games of the series after dropping the opener.
Colon (15-6) allowed one run and five hits over six innings for his first victory since July 26. The 40-year-old struck out seven and walked one, ending his personal five-game winless streak.
Jose Altuve and Brandon Barnes drove in runs for Houston.
Smith hit his eighth home run of the season to cap the third when the A's did all of their scoring. The towering three-run shot to right field came off Astros emergency starter Lucas Harrell (6-16).
Harrell was pressed into duty when scheduled starter Paul Clemens was scratched about an hour before the game because of a blister on his right hand.
Moss hit a two-run double, Cespedes added an RBI single and Daric Barton also knocked in a run before Smith's home run made it 7-1.
That was more than enough support for Colon. The right-hander gave up a single to leadoff hitter Jonathan Villar and a run-scoring double to Altuve before settling in.
It's the first time in five starts Colon has gone at least six innings. He was the Athletics' most consistent pitcher through the first half of the season until tiring over the past month.
Brett Anderson pitched the final three innings for Oakland for his third save.
Houston manager Bo Porter was ejected for the second time this series when he went out to talk to pitcher Erik Bedard in the bottom of the fifth.
Home plate umpire Hunter Wendelstedt went out to the mound, and at some point he and Porter exchanged words. Porter remained on the field after getting tossed and continued to argue with Wendelstedt before heading to the clubhouse.
Houston scored its other run in the seventh when Barnes singled in L.J. Hoes.
NOTES: Hoes was the only Astros player with multiple hits.