Munhak Baseball Stadium, Incheon Doosan took a 2-0 lead in the series with the aid of some strong batting and some sloppy Wyverns defensive work.
An incident occurred before the game started, with Doosan officials suspecting that the Wyverns had hidden a camera beneath the first base fence to steal signs, which was later proven false as the 'camera' turned out to be a sewer.
Benches cleared in the sixth inning when Doosan batter Kim Dong-joo was struck by a pitch from starter Chae Byeong-yong, delaying the game for six minutes.
SK fought back almost immediately with the fourth and final home run of the game off the bat of left-fielder Cho Dong-hwa.
In the top of the sixth, Ko Young-min reached first with a lead-off single, and advanced to second after Kim Dong-joo was struck by the bench-clearing pitch.
The pitching duel continued between Wyverns starter Michael Romano and Doosan's Kim Myeong-jae as neither of them allowed any more runs up until the top of the sixth.
An attempted home steal by Jeong Keun-woo was also successful as keeper Chae Sang-byung mishandled a pitch by reliever Lee Hei-chun, also allowing Cho Dong-hwa to score from second.
It appeared that SK were going to throw the game, take a 3-1 series deficit against a seemingly un-hittable Rios and fight back with a fresher pitching rotation.
Both got through the seventh unscathed, but an error in the top of the eight by second-baseman Ko Young-min with a misjudged throw to first base allowed leadoff batter Cho Dong-hwa to get onto second.
Speedy Kim Kang-min made it three with yet another double, and after managing to advance to third, walked in for an easy fourth run after a wild pitch from new reliever Lee Hei-chun rounded out the scoring for the game.
The scoreline remained 3-1 when Chae Byeong-yong was taken off after 5+1⁄2 innings of service to bring in their main post-season reliever Cho Woong-cheon, as Doosan tried to claw back the lead.
But they struggled for hits, with only a Hong Sung-heon double between innings six to eight to show for their efforts, and things got worse for them in the bottom of the eighth as SK added two more runs.
The next batter, Jeong Keun-woo, walked, and a Cho Dong-hwa double brought home Choi and gave a four-run lead to SK, now up 5-1.
A home run would have tied up the game and sent it into extra innings, but Chong struck him out to bring the Wyverns their first Korean Series victory in the history of the franchise.