Los Angeles, CA (SportsNetwork.com) - Adam LaRoche beat out a double-play grounder to allow the go-ahead run to score in the top of the 14th inning and the Washington Nationals went on to beat the Los Angeles Dodgers 8-5.

LaRoche didn't start Wednesday's rubber match of this three-game set because of a sore back, but finished with five RBI.

He delivered a pinch-hit, game-tying two-run homer in the ninth and plated a pair with a bases-loaded single in the 12th for a 5-3 Washington lead.

After failing to score with the bases loaded in the previous two innings, the Dodgers tied the game in the bottom of the 12th. Carl Crawford followed Juan Uribe's two-out single with a homer to left-center field off Tyler Clippard.

Jayson Werth, who dropped what would have been the final out in the ninth, struck out to open the 14th. Ian Desmond then reached on a Justin Turner throwing error and advanced to third on a Kevin Correia (2-3) wild pitch after Bryce Harper walked.

The Nationals went back in front when Los Angeles couldn't turn an inning- ending double play as LaRoche narrowly beat the throw to first base.

Asdrubal Cabrera provided some breathing room with a two-run homer to right.

Blake Treinen (2-3) pitched the final two innings for Washington, which secured its first series win at Dodger Stadium since May 2005.