BOSTON — Red Sox rookie Michael Chavis took batting practice in the cage at Fenway Park for approximately an hour after Boston won 11-2 over the Mariners on Sunday.

“I’m not done,” Chavis said. “I heard you all were waiting so ...”

He took a break to talk with reporters about his three-hit, five-RBI game. Then he returned to the cage to hit more.

How long does he plan to stay there?

“Until I’m happy,” Chavis said. “I don’t really have a set time. I’m not really in there with a set amount of swings. It’s a feel thing.”

Taking batting practice after games isn’t something new for Chavis. He said he does it when he’s "not feeling great” offensively.

“I don’t like the idea if my swing doesn’t feel good, just be like, ‘Oh, I guess it will feel better tomorrow’ or something like that," Chavis said. "I have my own time just to swing and feel it out myself. It’s just a little bit different when there’s a bunch of people around (pregame). Maybe somebody else is waiting so you need to get your routine out of the way so they can hit. I’ve done this since I was a kid. Even when I was like 14 years old, after a game I’d go hit if I didn’t feel good. In high school, I did the same thing. It’s part of my thing.”

Chavis broke an 0-for-19 slump in the first inning when he got lucky. The 23-year-old gave the Red Sox a 2-1 lead when he blooped a single into right field that Seattle second baseman Shed Long overran. It’s a ball that should have been caught.

“I was laughing on first base because it’s a line drive in the book,” Chavis said. “I didn’t hit it that well. ... But my biggest thing is I’m trying to help the team. I’m trying to win ballgames. That’s my job here. I helped a little bit there.”

Luck sometimes is exactly what a hitter needs to get back on track.

Chavis delivered a 107.8 mph opposite-field two-run single to right field to put Boston ahead 6-2 in the fifth inning.

Another opposite-field single by Chavis in the seventh inning drove in two more runs to make it 9-2. He didn’t hit it hard (76.5 mph) but he snuck it between the first and second basemen.

“I’ve been scuffling along a little bit,” Chavis said. “But I’ve been seeing the ball well. And I’ve been working, obviously. But I’ve been missing some pitches before tonight. So the work’s not done. I’m going to keep working and making adjustments. But it was nice to see some results tonight.”