The Blue Jays began the season 1-5 before taking two of three from the Detroit Tigers.
Roy Halladay shut out the Tigers for the third time since Sept. 6 and for the fourth time in his career, pitching Toronto to an 11-0 victory on Thursday.
Halladay allowed eight hits, walked one and struck out five. He also started out 1-2 last season before finishing with a 22-7 record and winning the AL Cy Young Award.
“That was vintage Doc there,” Toronto manager Carlos Tosca said. “He had real good stuff—95 or 96 with his fastball, his two-seamer was sinking, real good breaking ball. As good as you want to see.”
Tosca would like to see newcomer Miguel Batista step up in the opener against the Orioles.
The right-hander is searching for his first win with the Blue Jays after signing as a free agent during the offseason. Batista is 0-1 with a 5.25 ERA after two starts. He went 10-9 with a 3.54 ERA in 36 games with Arizona last season.
The Orioles have also won two of their last three games.
The former AL most valuable player with Oakland, who signed as a free agent in the offseason, entered the game with nine hits, all singles, and no RBIs in his first 30 at-bats.
Tejada was 0-for-3 with two walks before leading off the 11th against Bronson Arroyo.