The Smokies held a 3-2 lead with two outs in the ninth inning before costly mistakes allowed the Biscuits to get a 4-3 walk-off win. Tennessee (6-4, 40-39) lost its league-worst 18th one-run game while Montgomery (6-6, 43-39) earned its league-best 19th one-run victory.
Kyeong Kong led off the 10th inning with a single. Kevin Rhoderick hit Riccio Torrez with a pitch followed by a bunt single by Robby Price. Hector Guevara lined a 1-0 pitch into center field to score Kong and propel Montgomery to a stunning win.
The Biscuits evened the score in the bottom of the ninth. Kevin Rhoderick retired the first two men of the inning, but a walk and a single put a runner at third base. The righty threw a wild pitch on a 1-2 count allowing the tying run to score, forcing the game into extra innings tied at three.
For the second consecutive night, the Smokies scored the game's first run. A fielding error by Guevara allowed Alcantara to reach base in the first inning. Rubi Silva lined a single to right allowing Alcantara to go from first to third. First basemen Justin Bour drove in the Smokies infielder with a sacrifice fly to left field.
In the top of the third inning, Matt Szczur roped a lead off triple to the left field fence to lead off the inning. A wild pitch from Biscuits' starter Mike Colla on the next pitch allowed Szczur to score and put Tennessee ahead 2-0.
Montgomery scored its first run of the series in the bottom of the third inning. The first three batters reached safely to load the bases with no outs. Todd Glaesmann drove home Kevin Kiermaier to cut the deficit to 2-1.
The Biscuits tied the game in the fifth inning. The league's top hitter, Kiermaier, drove the sixth pitch of the at-bat over the fence in left field to lead off the frame and pull the two sides even at two.
Tied at two in the sixth inning, Arismendy Alcantara drove a 1-0 pitch over the wall in center field to lead off the frame, giving Tennessee a lead it would not relinquish. The switch-hitter has reached base in a Southern League-best 21 straight road games dating back to May 18.
Silva picked up where he left off yesterday going 2-for-4, joining John Andreoli as the two Tennessee hitters with two hits.
Alcantara went 1-for-3 with a walk, an RBI, and two runs scored.
Smokies starter Alberto Cabrera went 6.1 innings, allowing two earned runs on seven hits with three strikeouts and two walks.
Game three of the series is scheduled for 8:05 p.m. Monday night. Left-hander Austin Kirk (1-1, 5.48) will seek his second win in three starts for the Smokies. Montgomery sends one of Tampa Bay's top prospects and another southpaw Enny Romero (7-3, 2.92) to the mound.