Ian Stewart played for the first time since Feb. 26 and went 1 for 2 and Troy Tulowitzki added two more of the Rockies' 22 hits.
"After playing in a 'B' game, I felt my timing was there," Stewart said. "I was half surprised and half thankful. I felt like I hadn't missed a beat. I felt like I could have played the whole game."
Stewart strained a ligament in his left knee when he collided with teammate Carlos Gonzalez in the spring opener.
In the fifth inning, he dived to his right to stop Ian Kinsler's bouncer behind the third-base bag and threw out Kinsler at first.
"I definitely felt comfortable out there," Stewart said. "That's another part of the game where you have to have your timing down."
Chris Davis and Adrian Beltre homered for the Rangers.
Beltre went 3 for 6 in his first two games after missing nearly three weeks because of a strained right calf.
"I'm ready to go," Beltre said. "I feel a lot better than I thought I'd feel."
Texas starter C.J. Wilson allowed two runs on seven hits in five innings. He walked one and struck out five.
Wilson left with the Rangers leading 9-2 but the Rockies scored nine runs over the final four innings against the Texas bullpen.
Jason Hammel struggled for the Rockies, allowing eight runs -- three earned -- on seven hits with two walks and two strikeouts.
"I didn't trust when I had been working on all spring," said Hammel, who allowed eight runs -- three earned -- on seven hits and two walks with two strikeouts. "I tried to overpower it and do it with more aggressiveness. I was just missing really bad. That's the usual suspect for me when I'm flying open."
NOTES: Stewart first tested his knee in the "B" game against the Los Angeles Angels on Tuesday, going 2 for 4. ... Rockies CF Dexter Fowler left the game after the fourth inning with tightness in his right quadriceps. Fowler said he started to feel the tightness in the field in bottom of the second. He's day-to-day. ... Colorado 2B Eric Young Jr. singled in the sixth but was tagged out as he jogged into second base, where Charlie Blackmon already was standing. ... The Rangers played an exaggerated shift against Giambi and in his first two at-bats the left-hander hit bouncers to Kinsler playing in shallow right field. ... Davis raised his spring average to .405, but with Mitch Moreland tabbed as the Rangers' likely starter at first and Washington planning to carry Mike Napoli as a third-string catcher and reserve first baseman, Texas apparently doesn't have a roster spot open for the left-hander.