DETROIT -- After a few hard hit balls in the first two innings, Cha Seung Baek made an adjustment.
"They were looking for fastballs first two innings, so Jo (catcher Jenji Johjima) and me went to changeups," Baek said.
Guillen also had a run-scoring fielder's choice, and Raul Ibanez had three hits, drove in a run, and scored two runs. Seattle, which had three runs each in the fourth, fifth, and sixth innings, finished with 16 hits -- including a season high-tying six doubles.
Curtis Granderson homered for Detroit, which had tied San Francisco for the longest winning streak in the majors this season.
Baek (1-0) struck out four and didn't walk a batter in his first career complete game. He gave up a triple to Carlos Guillen in the second, singles to Brandon Inge in the third and eighth and Craig Monroe in the fifth, and a double to Gary Sheffield in the ninth.
"I think he settled in," Granderson said of Baek. "He definitely had his changeup working and he was able to go ahead and get a lot of quick outs. Keep his pitch count down so he could stay in the ballgame."
The Mariners also made several good defensive plays.
"He threw strikes, got ahead and kept guys (fielders) on their toes," Ibanez said.
Tigers starter Nate Robertson (3-2) lasted only 4 2/3 innings, despite retiring the first seven batters. He allowed six runs and 10 hits.
"I got up in the zone a couple pitches," he said.
With Seattle trailing 2-0, Jose Guillen's homer in fourth gave the Mariners the lead for good after Ibanez and Richie Sexson had singled with one out.
"Guillen's home run to put us back in it was huge," Mariners manager Mike Hargrove said. "But we had a lot of two-out hits."
The fourth inning ended when Johjima was thrown out at the plate by left fielder Craig Monroe on Jose Lopez's single. It appeared that Johjima had beaten catcher Ivan Rodriguez's tag, but he was called out by home plate umpire Dan Iassogna.
The Mariners added three more in the fifth on RBI doubles by Ibanez, Sexson, and Adrian Beltre. Beltre's hit, with two out, knocked Robertson out of the game.
Seattle also got three in the sixth on a run-scoring double by Ichiro Suzuki, an RBI single by Jose Vidro, and a fielder's choice by Jose Guillen.
Granderson led off the bottom of the first with his sixth homer of the season, driving Baek's 1-2 pitch into the right-field stands. The Tigers made it 2-0 in the second when Carlos Guillen scored on Sean Casey's sacrifice fly.
"We started off good, obviously," Detroit manager Jim Leyland said. "We hit some balls hard but he (Baek) pitched well. He mixed his pitches, he pitched well."
- The start of the game was delayed 1 hour, 36 minutes by rain.
- Seattle's Felix Hernandez, on the 15-day disabled list with a strained right forearm, played catch for 20 minutes on Wednesday and felt good afterward, according to pitching coach Rafael Chaves. Hernandez threw three innings of a simulated game on Tuesday, and Chaves said he would have a bullpen session on Friday.
- Detroit's Jeremy Bonderman said the blister on one of the fingers of his pitching hand was hurting on Wednesday. He'll get treatment for it, and doesn't expect to miss his next scheduled start on Sunday, though manager Jim Leyland said it's a possibility.
- The Mariners also had six doubles on May 4.
- Granderson's leadoff home run was the eighth of his career.