TORONTO -- Justin Smoak has to wait for his chances to play.

When he does, the results can be gratifying for the Toronto Blue Jays, such as Wednesday in their 11-2 win over the Boston Red Sox on Canada Day.

The switch-hitting first baseman had three hits, including home runs from each side of the plate, and three RBIs to lead a five-homer barrage by the Blue Jays.

"It's just the role I'm in right now," Smoak said. "When you get your opportunity, try to make the most of it. I feel like coming off the bench pinch hitting when I've gotten in there I've done well. I've got to keep working and hopefully get in there more often."

Blue Jays manager John Gibbons said, "We'll get him back in. I believe he deserves it after today."

Designated hitter Edwin Encarnacion, right fielder Jose Bautista and third baseman Josh Donaldson also homered for the Blue Jays, who snapped Boston's three-game winning streak.

Encarnacion and Bautista each drove in three runs, shortstop Jose Reyes had four singles and Donaldson added three hits.

Blue Jays starter Mark Buehrle (9-4) held the Red Sox (36-44) to four hits and one run. The left-hander struck out seven in winning his fourth straight decision in his past seven starts.

The Blue Jays were held to seven runs during their previous four games and were 1-3.

"They've been shut down for a few games, ran into some tough pitching," Buehrle said. "I think everybody knows what we're capable of doing, so it's a matter of time. I can't complain. I've had a fair amount of run support this year, which makes it a lot easier to pitch."

Boston center fielder Mookie Betts hit his ninth homer of the season, in the eighth inning against left-handed reliever Aaron Loup.

Red Sox right-hander Rick Porcello (4-9) allowed three home runs among seven hits and seven runs in two innings. He walked none but hit a batter and had a wild pitch while striking out three in a 44-pitch outing.

"It was a quick outing," Red Sox manager John Farrell said. "Pitches up in the strike zone against this team on a day when the ball is carrying as it was, that makes for a tough outing."

Porcello said, "I threw a lot of pitches over the middle of the plate. I'm not doing a good job of executing pitches in pressure situations. I don't feel lost. I know what's going on. I'm throwing a lot of fat pitches.”

The Blue Jays (42-38) erupted for five runs in the first inning on a three-run homer by Encarnacion and a two-run shot by Smoak.

Reyes started the first with a single, Donaldson bunted for a single and Encarnacion hit his 17th homer of the season.

Catcher Russell Martin was hit by a pitch and Smoak hit his first homer of the game into the second deck.

A one-out single by Reyes and a two-out homer by Bautista pushed the lead to 7-0 in the second.

Bautista's 16th homer of the season, a drive to left on the first pitch, snapped his 0-for-25 drought at the plate -- two short of his career high. Bautista had been hitless in his seven previous games.

Smoak, who hit his first homer of the game batting left-handed, hit his second right-handed against left-hander Robbie Ross in the third.

"It's not easy," Smoak said. "I've probably been working a lot more left-handed than right-handed, but right-handed, being my natural side, it normally feels comfortable. It was a good day."

The first-pitch homer, a towering shot to left, gave Smoak his seventh home run of the year and his third career multi-homer game. It was the second time he had homered from both sides of the plate in the same game.

Smoak became the sixth Blue Jay to homer from each side of the plate in the same game. Outfielder Melky Cabrera had been the most recent, doing it last season.

The Blue Jays added to their lead in the sixth when Bautista's sacrifice fly followed Reyes' single and Donaldson's double.

The Red Sox scored in the seventh when left fielder Hanley Ramirez extended his hitting streak to six with a triple and scored on a groundout to shortstop by third baseman Pablo Sandoval.

Donaldson's 19th homer of the season followed a single by Reyes against right-hander Jonathan Aro in the eighth.

"Perfect day, great crowd, big celebration today," Gibbons said. "We did it the right way."

NOTES: Red Sox LF Hanley Ramirez (sore left hand) returned to the lineup after missing six games. OF Alejandro De Aza, who has taken his place in left, returned to right field. ... The Blue Jays activated INF Steve Tolleson (left groin) from the disabled list and designated him for assignment. ... Red Sox INF Deven Marrero, whose major-league debut for Boston came Sunday as a substitute, made his first start Wednesday at second base. ... Boston C Ryan Hanigan (fractured right hand) was eligible to come off the DL Wednesday, but his flight was delayed in Philadelphia and C Sandy Leon started. Hanigan, who went on the DL May 2, completed his rehabilitation assignment with Double-A Portland on Monday. ... Boston LHP Wade Miley (7-7, 4.38 ERA) will start the series finale Thursday against Toronto LHP Matt Boyd (0-1, 5.40).