OAKLAND, Calif. -- Oakland A's right-hander Jarrod Parker was in the dugout, talking to pitching coach Curt Young when Brandon Moss came to the plate with one out in the bottom of the ninth inning of a 1-1 game with Seattle.
Parker had thrown nine innings, and A's left-hander Sean Doolittle was heating up in the bullpen, getting ready to pitch if the game went to extra innings. Parker needed the A's to score to secure his first career complete game and notch his seventh straight victory.
"I told Curt, 'You know, Mossy might hit an opposite field homer right here,'" Parker said.
Moments later, Moss sent Carter Capps' 2-1 fastball over the center-field fence for his second walk-off home run of the season and fourth of his career, this one giving the A's a 2-1 win.
"Center field, we'll take it," Parker said. "Going out for the 10th wasn't even something I'm worried about, thinking about. I knew if I kind of kept us in it good things are going to happen, and Brandon hit a home run at the end of the game. It's a great thing."
In his previous start, Parker allowed one run over 8 1/3 innings but got a no-decision as the A's lost 2-1 to Houston in 11 innings. After Monday night's win, A's manager Bob Melvin said he definitely wasn't going to send Parker out for a 10th inning.
"Absolutely you want to get the job done for the guy," Moss said. "He's been pitching outstanding lately. it feels good to get it done for him."
Parker hasn't lost since May 22 at Texas, nearly three months ago. He has a 15-start unbeaten streak, the second-longest by an A's pitcher in the past 39 years, behind only Dan Haren's 16-start streak from April 13-July 1 in 2007.
Parker struck out eight, one off his career high, and allowed just the lone run and eight hits as the A's remained just one-half game behind first-place Texas in the A.L. West. He needed only 100 pitches for his first complete game.
"It's great," Parker said. "I want to go into every game trying to throw nine. It's something I try to do each time. Tonight it just happened. I got some early outs early. Pretty low in pitch count going into 6, 7 8. Bob let me stay out there, and it was my game. That was awesome for him to leave me out there. It shows me he has faith in us and me."
Mariners right-hander Aaron Harang allowed just one run on five hits over seven innings but had his third straight no-decision, leaving with the game tied 1-1. He struck out three, and walked one and threw 97 pitches.
"I felt good," Harang said. "The curveball was big for me today."
After spotting the A's a 1-0 lead in the fourth, the Mariners pulled even with a run in the seventh off Parker. Nick Franklin lined a leadoff single to right and took second when the ball bounced off the heel of Josh Reddick's glove for an error.
Kyle Seager grounded out Moss, moving Franklin to third, and Kendrys Morales ripped an RBI single to right. Justin Smoak followed with a sharp single to right, but Reddick, who won a Gold Glove last season, gunned down Morales, who slowed up and didn't slide into third base.
"I didn't know he was going to have a chance to throw to third," Morales said. "I was surprised about it."
Parker got himself into another jam in the eighth. Michael Saunders led off with a single and moved to third when Parker threw Dustin Ackley's sacrifice bunt into right field for an error. After a meeting on the mound with Melvin, Parker struck out Humberto Quintero on a change-up, got Brad Miller to pop up and struck out Nick Franklin on another wicked change.
"If I can trust who I am and make pitches, I think I can get anybody out, and that's kind of how I felt right there," Parker said.
Moss' other walk-off homer this season came on April 29 when the A's beat the Angels 10-8 in 19 innings. This walk-off prevented extra innings and made Parker a winner.
"He throws 97 (mph)," Moss said of Capps. "I'm not looking for anything other than a fastball. I was very surprised when that ball went out because this place this year at night ... we have hit balls well at night here that just don't go like they did last year. Maybe something's different with the wind here this year or the air's heavy. But I was very happy when that ball went over the fence because when I hit it I was worried."
NOTES: Mariners acting manager Robby Thompson said manager Eric Wedge will be back in uniform Friday when Seattle opens a homestand against the Los Angeles Angels. "He's chomping at the bit to get back," Thompson said. "He'll slowly get back into it. We'll see how we work things out as far as that goes." Thompson has filled in since July 22 for Wedge, who is recovering from a minor stroke. ... A's CF Coco Crisp (strained left wrist) returned to the starting lineup Monday for the first time Aug. 11 at Toronto. ... Oakland LHP Brett Anderson (right foot stress fracture/right ankle sprain) will make his second rehab start Thursday night for Class A Stockton. ... Mariners OF/1B Michael Morse (sore left wrist) was out of the lineup for the second straight game. "Nothing severe," Thompson said.