Sports

Martinez's go-ahead RBI single keys Astros' 6-3 win over Rockies

  • Colorado Rockies' Michael Cuddyer singles against the Houston Astros in the fourth inning of a baseball game in Denver, Wednesday, May 29, 2013. (AP Photo/David Zalubowski)

    Colorado Rockies' Michael Cuddyer singles against the Houston Astros in the fourth inning of a baseball game in Denver, Wednesday, May 29, 2013. (AP Photo/David Zalubowski)  (The Associated Press)

  • Colorado Rockies' Troy Tulowitzki, left, follows the flight of his solo home run as Houston Astros catcher Jason Castro, right, looks on in the fourth inning of a baseball game in Denver, Wednesday, May 29, 2013. (AP Photo/David Zalubowski)

    Colorado Rockies' Troy Tulowitzki, left, follows the flight of his solo home run as Houston Astros catcher Jason Castro, right, looks on in the fourth inning of a baseball game in Denver, Wednesday, May 29, 2013. (AP Photo/David Zalubowski)  (The Associated Press)

  • Colorado Rockies' Troy Tulowitzki circles the bases after hitting a solo home run against the Houston Astros to lead off the bottom of the fourth inning of a baseball game in Denver, Wednesday, May 29, 2013. (AP Photo/David Zalubowski)

    Colorado Rockies' Troy Tulowitzki circles the bases after hitting a solo home run against the Houston Astros to lead off the bottom of the fourth inning of a baseball game in Denver, Wednesday, May 29, 2013. (AP Photo/David Zalubowski)  (The Associated Press)

J.D. Martinez hit a go-ahead RBI single in the eighth inning, Carlos Pena connected for a home run as part of a three-run ninth, and the Houston Astros rallied against Colorado's bullpen to beat the Rockies 6-3 on Wednesday night.

The Astros overcame 12 strikeouts and Troy Tulowitzki's first multihomer game since 2011 in taking the opener of a two-game set at Coors Field.

Paul Clemens (3-2) pitched 1 2-3 innings of scoreless relief.

Marwin Gonzalez led off the eighth with a single off reliever Edgmer Escalona (1-2). Jose Altuve was intentionally walked and Rex Brothers relieved Escalona. Brothers struck out Jason Castro but Martinez hit a two-out single up the middle, scoring Gonzalez to put the Astros in front by a run.