Reds 5, Pirates 4: Scott Rolen had two RBIs and scored the go-ahead run as host Cincinnati won its fifth straight game and 15th in 16 contests.

Rolen led off the eighth with a triple off the center-field wall against Jared Hughes (2-1) and scored on a high-chopping infield out by Todd Frazier.

Jonathan Broxton (1-0) worked a scoreless eighth and Aroldis Chapman struck out two in the ninth for his 25th save in 29 opportunities as Cincinnati moved 5 1/2 games ahead of Pittsburgh in the National League Central.

Rolen’s two-run single in the first inning gave the Reds an early lead but Pittsburgh received a leadoff homer by Michael McKenry in the second and a sacrifice fly by Neil Walker in the third to tie the contest.

The Reds took a 3-2 lead in the third on a run-scoring double by Ryan Ludwick and increased the lead to two later in the frame on an infield single by Frazier.

Pittsburgh pulled within 4-3 when Josh Harrison hit a two-out homer off Mike Leake. Harrison had been plunked with a pitch by Leake in his previous at-bat. A sacrifice fly in the sixth by Travis Snider tied the score at 4-4.

Leake allowed four runs and six hits in six innings. He struck out seven and walked one.

Pirates starter James McDonald allowed four runs (three earned) and seven hits in six innings. He also struck out seven and walked one.

GAME NOTEBOOK: Pirates manager Clint Hurdle was ejected in the second inning by home umpire Brian Gorman when he objected to both teams being warned after Leake hit Harrison with a pitch. … Ludwick has a league-leading 23 RBIs in 20 games since the All-Star break. He had 34 in 62 games prior to the break. … McKenry has four homers in his last seven games. … Reds 2B Brandon Phillips (calf) missed his fourth consecutive game.