Cory Luebke pitched two-hit ball over six innings for his first major-league victory and fellow rookie Luis Durango had two RBIs as the San Diego Padres finished a three-game sweep of the visiting Los Angeles Dodgers with a 4-0 win on Wednesday night.

Luebke (1-1) struck out seven and walked one in his second big-league outing as the Padres increased their lead over second-place San Francisco to two games in the National League West race.

Four relievers finished up a three-hit shutout with Luke Gregerson getting the final five outs for his second save of the season.

The Padres loaded the bases with none out in the sixth and Durango delivered a clutch two-run single to left field to give San Diego a 3-0 lead. Adrian Gonzalez added a sacrifice fly later in the inning.

Durango scored San Diego’s first run in the third inning when he reached on an infield single, stole second, and came home on Miguel Tejada’s single to center.

Dodgers starter Chad Billingsley (11-9) gave up four runs and six hits in 5 1/3 innings. Billingsley struck out six and walked five.