TORONTO (AP) -- Fresh off another frustrating series loss, Brett Lawrie wants the struggling Toronto Blue Jays to wipe the slate clean.
Ryan Dempster won his second straight outing and the Boston Red Sox took advantage of a season-high 10 walks to beat Toronto 3-1 on Thursday night.
Lawrie homered and Colby Rasmus had three hits but the last-place Blue Jays lost for the 12th time in 16 games. Toronto dropped to 4-12 against AL East opponents.
"If we keep beating ourselves up it's going to be a long year," Lawrie said. "I think it's time we start putting stuff behind us and just come here and play baseball."
The Blue Jays loaded the bases in the third and the seventh but failed to score either time.
"We had opportunities," manager John Gibbons said. "It was a tight ballgame."
Toronto begins a three-game series with the Seattle Mariners on Friday night. It's the first time in five series the Jays have faced an opponent with a losing record.
"We've got to keep our heads up and try and steal a few against Seattle," Lawrie said. "We've got a big series coming up and we're going to do what we can to win."
Blue Jays left-hander J.A. Happ allowed two runs and three hits in 3 2-3 innings, his shortest start of the season and his shortest since May, 2009. Happ (2-2) matched a career high with seven walks and struck out two.
"There's a line between not giving in and making quality pitches and I was constantly on the wrong side of that line," Happ said. "I made it tough on myself."
Happ left after walking the bases loaded with two out in the fourth, but reliever Brad Lincoln came on and got Dustin Pedroia to ground into a fielder's choice.
"I think (Happ) just lost his release point," Gibbons said. "He's the type of pitcher where he pitches up in the zone and sometimes he loses that."
Dempster, from British Columbia, improved to 6-0 in 10 starts in Canada, the first nine in Montreal.
"I'm looking for more expansion teams in Canada," he joked. "That's kind of the goal. Maybe Vancouver will get a team, or Winnipeg or something, so I can hopefully keep that going."
Dempster (2-2) allowed one run and four hits in six innings. The right-hander, who walked three and struck out four, retired 10 of the final 11 batters he faced. That streak began with a double play grounder to escape a bases-loaded jam after three walks in the third.
"I was able to make a couple of big pitches, especially with the bases loaded, and get out of my own mess I made," he said.
Winless in his first four starts this season, Dempster posted his first victory by beating Houston a week ago.
"He doesn't give in," Red Sox manager John Farrell said. "He didn't have his best stuff overall tonight but he uses the whole count when he needs to and he's got the knack to not let the game speed up on him and try to reach back and just go with sheer velocity."
Andrew Miller got two outs in seventh and Junichi Tazawa got the third. Koji Uehara pitched the eighth and Joel Hanrahan finished for his fourth save in five chances and the 100th save of his career.
Hanrahan got the call in the ninth because regular closer Andrew Bailey was unavailable.
"He's felt some discomfort in the biceps," Farrell said of Bailey. "He got on the mound a little bit before the game yesterday and felt the discomfort. It was still there today so he was unavailable."
Boston improved its major league-best road record to 9-3 and won its seventh series in nine tries this season.
The Red Sox have won eight of 10 and are 20-8 overall, their best start since opening 20-7 in 2002.
Lawrie connected leading off the bottom of the first, his third homer of the season and the third leadoff shot of his career.
Boston took the lead with a two-run second. Mike Napoli doubled and scored on Mike Carp's single to right, and Stephen Drew drove in Will Middlebrooks with a sacrifice fly.
Napoli's double was his ML-leading 22nd extra-base hit.
Boston catcher David Ross drew a leadoff walk from Lincoln in the sixth and moved to second on a wild pitch. Steve Delabar replaced Lincoln but allowed an RBI single to Jacoby Ellsbury.
Toronto loaded the bases in the seventh but Tazawa struck out Adam Lind to end the threat.