Kolten Wong belted a walk-off home run in the bottom half of the 9th inning to lift the St. Louis Cardinals to a dramatic 5-4 win over the San Francisco Giants in game three of the National League Championship Series at Busch Stadium in St. Louis, Missouri on Sunday night.

The win by St. Louis evened up the best-of-seven game series, 1-1.

St. Louis third baseman Matt Carpenter put the Cardinals on the scoreboard first, with a solo home run in the bottom half of the third inning.

The Cardinals extended their lead to 2-0 in the bottom of the fourth inning when Randal Grichuk singled home Matt Adams.

In the top of the fifth inning, pinch-hitter Joaquin Arias grounded out to second to push across Brandon Belt across the plate with the Giants' first run of the game, trimming the St. Louis lead to 2-1.

San Francisco tied the game, 2-2, in the top of the sixth inning, courtesy of a Hunter Pence single, which scored Pablo Sandoval.

The Giants grabbed their first lead of the game in the top half of the seventh inning, when Gregor Blanco punched a single through the right side of the infield, scoring Brandon Crawford.

St. Louis tied the game, 3-3, in the bottom half of the seventh inning, on a pinch hit home run off the bat of Oscar Taveras.

The Cardinals used the long ball to their advantage again in the bottom half of the eighth inning, as Matt Adams belted a solo home run, to provide them with a 4-3 advantage.

The Giants tied the game, 4-4, in the top of the ninth inning, when Matt Duffy raced home on a wild pitch from Trevor Rosenthal.

That set the stage for Wong, who delivered the big blast in the bottom half of the ninth inning to win it for the Cardinals.

The series now moves to San Francisco for game three on Tuesday night.

View the game box score.

All video is courtesy of MLB.com.