Nick Castellanos homered and hit a go-ahead double in the 12th inning, and the visiting Cincinnati Reds beat the Colorado Rockies 6-5 in Denver on Saturday night.

Castellanos also singled and drove in three runs, Kyle Farmer homered among his three hits, and Lucas Sims (3-1) pitched two innings of relief for Cincinnati. Heath Hembree pitched the 12th for his first save.

Ryan McMahon homered and Yonathan Daza had two hits for Colorado.

Castellanos put the Reds ahead with a double off of Antonio Santos (0-1) to begin the 12th, and he moved to third on pinch hitter Nick Senzel's single. Eugenio Suarez drove in Castellanos with a groundout.

The Rockies got a run in the bottom of the inning on a groundout by Raimel Tapia.

The Reds went ahead in the 11th on Farmer's third home run of the season, a two-run shot. In the bottom of the inning, McMahon drew a walk and Josh Fuentes hit a two-run double to tie it.

The Rockies went ahead in the first when Tapia led off with a double and moved to third on a fly out.

After a strikeout McMahon launched a pitch into the second deck in right-center field to give Colorado a 2-0 lead. It was his ninth homer of the season.

Cincinnati came back in the third inning. Pitcher Tyler Mahle drew a one-out walk, and Rockies starter Jhoulys Chacin fanned Jesse Winker, Castellanos homered to left to tie it at 2-2. It was Castellanos' 10th homer of the season.

Tucker Barnhart led off the fourth with a single but was wiped out on a double play. It was the eighth ground-ball out for Chacin, who left after the fourth inning. He allowed two runs on four hits with a walk and struck out three.

Both teams had chances to go ahead. Colorado reliever Robert Stephenson got the first two outs of the seventh before two walks and a hit batter loaded the bases. Justin Lawrence came on and got Winker to ground out.

Garrett Hampson led off the bottom of the inning with a triple off Sims but couldn't score. Elias Diaz flew out, Charlie Blackmon fanned and Tapia grounded out.

--Field Level Media