Final Score: Cincinnati 6, Atlanta 3

Cincinnati, OH (Sports Network) - Devin Mesoraco belted his first career grand slam and the Cincinnati Reds completed a four-game sweep of the Atlanta Braves at home for the first time in 32 years with a 6-3 win Thursday night at Great American Ball Park.

Drew Stubbs added a solo home run for the Reds, who extended their season-high winning streak to six games while notching their first four-game sweep against a visiting Braves team since April 9-13, 1980 at Riverfront Stadium.

Homer Bailey (3-3) gave up a two-run homer to Atlanta's Michael Bourn, one of four hits allowed by the right-hander in six innings of work.

Juan Francisco also homered for the Braves, while Randall Delgado (2-5) dropped his fifth straight decision after being tagged for four runs on seven hits and three walks in 5 1/3 innings.

Todd Frazier, who hit a solo homer in the bottom of the ninth inning Wednesday to give Cincinnati a 2-1 victory, opened the scoring in the fourth by plating Chris Heisey with a one-out double.

Atlanta responded with some two-out damage in the next frame. Delgado kept the top of the fifth alive with a single and Bourn followed with his third homer of the series, a drive over the right-field wall.

But the Reds moved back in front on Mesoraco's sixth-inning blast.

"The inning unraveled a little bit on [Delgado]," said Braves manager Fredi Gonzalez.

Delgado issued a leadoff walk to Brandon Phillips and another one to Frazier around a one-out Heisey single, which loaded the bases.

Kris Medlen replaced Delgado and Mesoraco launched the reliever's third pitch, a 2-0 fastball, down the left-field line to put Cincinnati up 5-2.

"You always want to be in that situation, where there are guys on base, and I got myself in a good count and got a good pitch to hit," Mesoraco said.

Francisco and Stubbs exchanged home runs in the seventh before Logan Ondrusek earned his second save of the season by getting Francisco to ground into a game-ending double play.

Game Notes

The Reds have won six in a row for the first time since a seven-game run from August 13-20, 2010...Before the game, Braves third baseman Chipper Jones received a game-used base from his final series in Cincinnati.