CINCINNATI -- Alfredo Simon pitched seven strong innings and third baseman Todd Frazier hit his 22nd homer, lifting the Cincinnati Reds to a 5-3 victory over the Atlanta Braves in the finale of a four-game series Sunday afternoon at Great American Ball Park.

It is the first two-game winning streak for Cincinnati (63-68) since Aug. 5-6. The Reds are 12-24 since the All-Star break.

Atlanta (68-63) failed to gain ground in the National League Wild Card race after going 3-for-21 with runners in scoring position combined over the final three games of the series.

Catcher Evan Gattis hit his 20th home run in the ninth inning.

Jonathan Broxton earned his seventh save.

Atlanta scored twice in the ninth on Gattis' homer and an RBI hit by right fielder Jason Heyward, but Broxton fanned Justin Upton with the bases loaded to end the threat.

Simon, who earned a spot on the National League All-Star team after going 12-3 with a 2.70 ERA, had lost five straight decisions.

On Sunday, Simon (13-8) enjoyed his best outing since the break, allowing just one run and five hits in seven innings with a walk and six strikeouts.

Braves starter Aaron Harang (10-8) made his fifth career start against his former club, which he was 3-0 against coming in. But an elevated pitch-count and a three-run fourth were his undoing.

Harang allowed four earned runs on eight hits, needing 111 pitches to get through 5 1/3 innings.

Cincinnati loaded the bases with one out in the fourth when, with two runners on, Harang failed to cover first base on right fielder Jay Bruce's grounder that was fielded by Heyward just fair down the right-field line.

Left fielder Ryan Ludwick's sacrifice fly and RBI singles by first baseman Brayan Pena and shortstop Zack Cozart made the score 3-0.

Cozart went 3-for-4 with a triple and two RBI.

Simon found his rhythm after pitching through jams in the first couple innings. He retired eight straight, three via strikeout, before Gattis' double in the seventh. Simon allowed only three hits through six innings.

Harang left with the bases loaded in the sixth after 111 pitches. Cozart's fielder's choice grounder off David Carpenter drove in Cincinnati's fourth run.

Cincinnati got that run back in the bottom half of the seventh when Frazier launched a 1-0 pitch from David Hale off the façade below the upper-deck bleachers in left field, making the score 5-1.

NOTES: Braves RHP Aaron Harang, Sunday's starter, pitched for eight seasons in Cincinnati, going 75-80 with a 4.28 ERA. ... Braves RF Jason Heyward was back in the lineup on Sunday after having a day on Saturday, snapping a streak of 19 straight starts. ... Braves SS Andrelton Simmons had a day off Sunday. Phil Gosselin started at shortstop. ... Struggling Reds RF Jay Bruce returned to the starting lineup on Sunday after a day off and went 2-for-4, snapping a 0-for-12 skid. ... With his next stolen base, Reds CF Billy Hamilton will become the ninth player in franchise history with 50 steals in a season. His 49 steals are the most for a Reds player since Deion Sanders stole 56 in 1997.