PITTSBURGH -- Kevin Gausman's season is finished, and even though he had pitched well at times during the season's second half, his final start resembled many of those in April, May, June and early July.
The right-hander allowed six runs in four innings as the Orioles lost to the Pittsburgh Pirates, 10-1, before 19,318 at PNC Park Sept. 26.
With just four games to play, the Orioles are 75-83 and 7-17 in September.
Gausman allowed Pittsburgh center fielder Andrew McCutchen's first career grand slam in the second inning. McCutchen had hit 201 homers before the grand slam.
It was the 11th time this season Gausman allowed five or more earned runs in a game. Only three of those outings came after July 15. He finished the season with an 11-11 record and a 4.81 ERA.
"Not very good all around," Gausman said of 2017. "Didn't go deep into ball games. Not many quality starts. Obviously, I'm very frustrated. And with the season I had last year and obviously starting Opening Day, I haven't been a guy that should have gotten that right this year."
In his previous five starts, Gausman had allowed no earned runs three times and one in another, but this one started badly when he gave up consecutive RBI doubles to McCutchen and Pittsburgh first baseman Josh Bell in the first.
"I feel like I've been throwing the ball well, so that's what makes it even more frustrating," Gausman said.
McCutchen added a three-run home run off right-hander Jimmy Yacabonis in the sixth to give him eight RBIs.
Gausman felt like the only two hard-hit balls he gave up were the double and home run by McCutchen.
"It can be good that he knows what he's got to do to be successful," manager Buck Showalter said. "Just because the results are there sometimes, there are some things you get away with that you know you're going to pay the price for down the road if you don't straighten it out."
Showalter started an all-rookie outfield of Trey Mancini in left, Austin Hays in center and Anthony Santander in right. According to STATS, it was the first time the Orioles started an outfield of rookies since Sept. 27, 1973 when Al Bumbry, Rich Coggins and Jim Fuller comprised Earl Weaver's outfield.
"I wish we couldn't play them, but that would require different circumstances in the won-loss record," Showalter said. "That was nothing by design. It's just our best foot for us to be a better organization as we go forward."
Chris Davis' 26th home run in the sixth was the Orioles' only run.
NOTES: SS Tim Beckham was out for the second straight game with a strained right hamstring. He hopes to play this weekend at Tampa Bay. … CF Adam Jones continues to have leg soreness, and he sat out. … RHP Jeremy Hellickson has back stiffness and may not pitch again. … RHPs Gabriel Ynoa (2-2, 3.41) and Chad Kuhl (7-11, 4.31) are the scheduled pitchers for Sept. 27. … Mancini has a 15-game hitting streak. … The Orioles allowed 10 or more runs for the 15th time this season.