(Sports Network) - The Houston Astros opened their 10-game road trip on a good note, and will try to stay on track tonight in the second test of a three-game series against the Los Angeles Dodgers at Chavez Ravine.

The Astros, who have won six of seven overall, recorded a 7-1 victory over the Dodgers in Friday's series opener. Lance Berkman belted a two-run homer and Carlos Lee also drove in two runs to lead the charge. Berkman, who had three hits, has 16 in his last 20 at-bats.

Brian Moehler, making his first start since September of 2006 when he was with Florida, threw five shutout innings to get the win. Moehler started in place of the injured Wandy Rodriguez, allowing five hits and one walk.

Houston will also visit San Francisco and Texas on the current trek.

The Astros will send Chris Sampson to the hill on Saturday, and he is 1-3 with a 7.96 earned run average in six starts this season.

Sampson is 0-1 in his past two outings, recording a no decision the previous time out on May 4 versus Milwaukee. He was reached for five runs and nine hits over 3 1/3 innings of an 8-6 Houston win.

The right-handed Texas Tech product has faced the Dodgers just once in his career on July 23 last season. He was pounded for four runs and eight hits in five innings of a 10-2 loss at Minute Maid Park.

Los Angeles starter Derek Lowe suffered the loss last night, yielding eight hits and six runs over 5 1/3 innings. James Loney and Blake DeWitt each had two hits for the Dodgers, losers of two straight.

Toeing the rubber for LA this evening will be Chad Billingsley, who is 2-4 with a 4.54 earned run average in eight games (six starts) this season.

Billingsley has won consecutive starts since a personal four-game losing streak, and held the New York Mets to one run and five hits in six innings on Monday at Chavez Ravine.

The righty is 1-1 with a 3.86 ERA in two career starts against Houston.

Houston won four of its seven meetings with the Dodgers last season.