(Sports Network) - Now that their recent home losing streak is gone, the San Francisco Giants will try for back-to-back wins versus the Washington Nationals in tonight's second test of a three-game series at AT&T Park.

San Francisco had dropped four in a row at home and three straight overall before handing Washington a 6-3 setback in Tuesday's opener of this series. Bengie Molina was a big reason for lifting San Francisco's spirits, as he ended with a pair of home runs.

Fred Lewis also went deep in the victory, while Aaron Rowand and Omar Vizquel each drove in a run for the Giants, who won for just the second time in 11 tries.

Starter Barry Zito tossed six solid innings to win his second consecutive decision for the first time this season. Zito yielded three runs on seven hits and three walks with five strikeouts.

The Giants are 1-3 on a nine-game homestand and 18-31 as the host this season. They will hand the ball to Kevin Correia on Wednesday, and he is just 1-5 with a 5.81 ERA in 11 games (10 starts) on the year. Sadly, the Giants have dropped Correia's last eight starts since he beat St. Louis on April 10.

Correia is 0-4 in his last nine outings with four straight no-decisions. He last took the hill on July 12 at the Chicago Cubs, when he allowed seven runs and nine hits over 3 2/3 innings of work. The righty is 1-1 with a 2.55 earned run average in eight career games (1 start) against Washington.

Washington had a two-game winning streak come to an end with Tuesday's loss, in which Paul Lo Duca finished 2-for-4 with two RBI and Willie Harris added a pair of hits and drove in a run.

Nats third baseman Ryan Zimmerman, who had been on the disabled list since May 26 with a shoulder injury, was activated on Tuesday and went 1-for-3 with a pair of walks.

Jason Bergmann started for the Nationals and gave up five runs -- four earned -- on five hits in five innings to absorb the loss.

Washington is 2-2 on a nine-game road trip and 18-32 as the visitor this season.

In team news for the Nationals, All-Star infielder Cristian Guzman inked a two-year contract extension on Tuesday that will keep him with the club through the 2010 season. Guzman ended 0-for-4 in last night's loss.

Rookie Collin Balester will toe the rubber for Washington on Wednesday, and he is 1-2 with a 5.87 earned run average over three starts. Balester has dropped consecutive starts and was roughed up his last time out on July 12 versus the Houston Astros. He gave up six runs, four of which were earned, in 4 2/3 frames of a 6-4 defeat.

The young right-hander has never faced San Francisco.

San Francisco swept a four-game set against Washington in D.C. from June 6-9 of this season. The Nationals were 9-4 in the last 13 games of this series before losing its five recent matchups with the Giants.