IT AIN’T OVER UNTIL IT’S OVER, and then sometimes it’s not over even after that. The last two games against the Toronto Blue Jays each had do-overs. The first one featured a walkoff win, complete with dress rehearsal:

Few things are more embarrassing than premature exhilaration. That’s what the Red Sox were guilty of last night at the Fens when they came storming out of their dugout to celebrate another apparent walkoff win, only to have plate umpire Sam Holbrook stop them short when he signaled that Jed Lowrie was out at home, the left leg of Toronto catcher Rod Barajas blocking Lowrie from his destination in the bottom of the ninth.

Instead of being in the vortex of a swirling bunch of delirious teammates, Lowrie was staring at a monitor in the runway behind the Sox dugout, watching a replay of the throw from Blue Jays center fielder Vernon Wells that deprived Brandon Moss of a game-winning hit.

“I got done with my clip, and on live TV [Jason] Varitek was hitting the ball,” the Sox rookie said.

The following night was less dramatic, but just as silly:

No ninth-inning thunder last night. . . . But there were fireworks – after an apparent game-ending fly ball by Coco Crisp was nullified by second base umpire Bruce Dreckman, who called a balk on closer B.J. Ryan before he threw the pitch. The umpire ruled that Ryan had not come to a stop before throwing plateward.

“We saw it,” Sox manager Terry Francona said of Dreckman’s call. “He threw his arms up and we knew it was going to take a second.”

With the crowd already headed for the exits and the Jays lining up for postgame high-fives, Jays manager John Gibbons, who had already begun strolling onto the field to slap some hands, flew into a rage when informed of Dreckman’s call. He confronted the umpire, and was ejected.

“Their whole team was on the field,” Sox catcher Kevin Cash said. “It was kind of like us [Wednesday] night, when we all ran out and Jed [Lowrie] was thrown out at the plate.”