CINCINNATI — Rafael Belliard and Wil Nieves hit solo home runs to back Garrett Mock’s seven solid innings and the Washington Nationals snapped a three-game losing streak with a 2-0 victory over the Cincinnati Reds on Friday night.

Mock (2-4), making his sixth start since being recalled from Triple-A Syracuse on July 16, retired 10 consecutive batters in one stretch on the way to his second win in his last two starts. He allowed six hits with four walks and six strikeouts.

Jorge Sosa, Sean Burnett and Jason Bergmann combined to pitch scoreless seventh and eighth innings and Mike MacDougal threw a perfect ninth for his 12th save, completing Washington’s third shutout of the season. The Reds have been shut out four times.

The Nationals put at least one runner on base in all seven innings against Aaron Harang (6-14).

Ryan Zimmerman went 0 for 4 — including a line drive that was picked off by leaping shortstop Paul Janish in the eighth inning — and his hitting streak was snapped at 16 games. It had been the longest current streak in the NL.

Belliard broke up a scoreless tie by hitting Harang’s first pitch of the fifth inning into the upper deck in left. It was Belliard’s fourth of the season.

Nieves hit Harang’s first pitch of the seventh for an opposite-field homer into the right field seats. It was the catcher’s first of the season and second of his career. He hit his first last season for the Nationals.

Reds’ boxscore

Friday’s Game

Nationals 2, Reds 0

Washington Cincinnati

ab r h bi ab r h bi

Morgan cf 5 0 2 0 Tavers cf 4 0 2 0

CGzmn ss 4 0 0 0 Janish ss 4 0 1 0

Zmrmn 3b 4 0 0 0 Votto 1b 4 0 1 0

Dunn 1b 1 0 0 0 BPhllps 2b 4 0 1 0

AlGnzlz pr-2b 0 0 0 0 L.Nix lf 3 0 1 0

Wlngh rf 2 0 1 0 Balentn lf 1 0 0 0

Brgmn p 0 0 0 0 Gomes rf 3 0 1 0

MacDgl p 0 0 0 0 ARosls 3b 2 0 0 0

WHarrs lf 4 0 0 0 Tatum c 4 0 0 0

Bellird 2b-1b 4 1 1 1 Harang p 2 0 1 0

Nieves c 4 1 2 1 Dickrsn ph 1 0 0 0

Mock p 2 0 0 0 Masset p 0 0 0 0

JPadill ph 1 0 0 0 Corder p 0 0 0 0

Sosa p 0 0 0 0 Sutton ph 1 0 0 0

SBurntt p 0 0 0 0

Dukes rf 1 0 0 0

Totals 32 2 6 2 Totals 33 0 8 0

Washington 000 010 100 — 2

Cincinnati 000 000 000 — 0

DP—Washington 1, Cincinnati 1. LOB—Washington 8, Cincinnati 10. 2B—L.Nix (23), Gomes (8). HR—Belliard (4), Nieves (1).

IP H R ER BB SO

Washington

Mock W,2-4 6 6 0 0 4 6

Sosa H,3 2-3 1 0 0 0 0

S.Burnett H,9 1-3 1 0 0 0 1

Bergmann H,6 1 0 0 0 0 1

MacDougal S,12-13 1 0 0 0 0 0

Cincinnati

Harang L,6-14 7 6 2 2 3 6

Masset 1 0 0 0 2 2

Cordero 1 0 0 0 0 0

S.Burnett pitched to 1 batter in the 8th. Umpires—Home, Andy Fletcher; First, Greg Gibson; Second, Angel Campos; Third, Tim McClelland. T—2:56. A—19,606 (42,319).