Tigers 8, Mariners 7 (12 innings)

Tigers' Justin Upton hits a walk off home run in the 12th inning.

Justin Upton hits a walk-off home run in the 12th inning.

Tigers teammates wait for Justin Upton to get to home plate on his walk off home run in the 12th inning.

Tigers pitcher Mike Pelfrey works in the first inning. Pelfrey pitched five innings allowing 12 hits with six earned runs, one walk and two strikeouts.

Tigers pitcher Mike Pelfrey works in the first inning.

Tigers' Nick Castellanos singles in the first inning. Castellanos went 2-for-6.

Tigers' Miguel Cabrera hits a two-run home run in the first inning. Cabrera went 2-for-5.

Tigers' Miguel Cabrera, right, and Cameron Maybin round the bases on Cabrera's two-run home run in the first inning.

Tigers' Victor Martinez, left, congratulates Miguel Cabrera after Cabrera's two-run home run in the first inning to give the Tigers a 2-0 lead.

Tigers pitcher Mike Pelfrey, left, talks with Miguel Cabrera after Cabrera's two-run home run in the first inning.

Tigers right fielder Steven Moya cannot catch this line drive off the bat of Mariners' Ketel Marte which scores two runs in the second inning.

Tigers pitching coach Rich Dubee comes out to talk with pitcher Mike Pelfrey in the second inning.

Tigers' Ian Kinsler hits the dirt after he is hit with a pitch in the second inning.

MLB headset technician Bill Gannon of Grand Rapids is ready for a play review or a foul ball, wearing his glove in the third inning.

Tigers shortstop Jose Iglesias jumps over Mariners' Ketel Marte after turning a double play to end the top of the fourth inning.

Tigers' James McCann singles in the fourth inning. McCann went 2-for-4.

Tigers' Cameron Maybin triples with two RBIs to give the Tigers a 5-4 lead in the fourth inning. Maybin went 2-for-5.

Tigers' James McCann runs past Mariners pitcher Nathan Karns to score on a triple by Cameron Maybin in the fourth inning.

Tigers' Cameron Maybin gets lots of applause after he triples with two RBIs to give the Tigers a 5-4 lead in the fourth inning.

Mariners' Nelson Cruz, left, congratulates Adam Lind after Lind's two-run home run in the to give the Mariners a 6-5 lead in the fifth inning.

Fans enjoy some high seats near the Jungle beyond right field in the fifth inning.

Tigers pitcher Kyle Ryan works in the sixth inning. Ryan pitched two innings allowing one hit with two strikeouts.

Tigers' Cameron Maybin singles in the sixth inning.

Mariners manager Scott Servais makes the signal to the bullpen to make a pitching change in the sixth inning taking out pitcher Jonathan Aro, center.

With two men on base, Tigers' Miguel Cabrera hits his bat with his helmet after he strikes out on a foul tip to end the sixth inning.

Tigers center fielder Cameron Maybin catches a fly ball off the bat of Mariners' Adam Lind in the seventh inning.

Tigers' Justin Upton hits a two-run home run in the seventh inning to give the Tigers a 7-6 lead.

Tigers' Nick Castellanos reacts after Justin Upton hits a two-run home run in the seventh inning to give the Tigers a 7-6 lead.

Tigers' Justin Upton smiles in the dugout after hitting a two-run home run in the seventh inning to give the Tigers a 7-6 lead.

Tigers pitcher Justin Wilson works in the eighth inning. Wilson pitched one inning allowing two hits with one earned run and one strikeout.

Tigers first baseman Miguel Cabrera after he deflects a sharp ground ball off the bat of Mariners' Leonys Martin in the eighth inning which scores a run and ties the game at seven.

Tigers manager Brad Ausmus watches in the eighth inning.

Tigers pitcher Francisco Rodriguez works in the ninth inning. Rodriguez pitched one hitless inning with two strikeouts.

With two men on base base, Tigers' Nick Castellanos hits a broken bat fly out in the ninth inning.

Tigers' Mike Aviles reacts after he hits the ball off his foot in the ninth inning.

Tigers pitcher Alex Wilson works in the 11th inning. Wilson pitched two innings allowing three hits with one walk and two strikeouts.

With two Mariners on base, a meeting on the mound with pitcher Alex Wilson and the infield breaks up before he pitches to Leonys Martin in the 11th inning.

Mariners' Shawn O'Malley dives for second base on his double to lead off the 11th inning.

Tigers pitcher Alex Wilson reacts after a groundout strands a runner at third to end the top of the 11th inning.

Tigers designated hitter Victor Martinez singles in the 11th inning. Martinez went 2-for-5.

Tigers pitcher Anibal Sanchez works in the 12th inning. Sanchez pitched one inning allowing one hit.

After a slight bobble and a broken bat heading his way, Tigers shortstop Jose Iglesias makes the throw to first for the out on Mariners' Franklin Gutierrez in the 12th inning.

Tigers teammates wait for Justin Upton to get to home plate on his walk off home run in the 12th inning.

Tigers' Anibal Sanchez and Jose Iglesias, right, high five during the post game celebration.

Tigers manager Brad Ausmus hugs Justin Upton after the win.