PHOENIX _ The potential pitcher's duel was one-sided.
Padres rookie Joey Lucchesi had his roughest outing yet Sunday in the finale of a three-game series with the Diamondbacks, hurting himself with an error and giving up four runs in the fourth inning, and the Padres managed just three hits in a 4-2 loss.
Arizona starter Patrick Corbin, who entered Sunday's game with an ERA of 1.65, one-hundredth of a point better than Lucchesi's, left with it slightly higher (1.89) but also with the victory.
Corbin (4-0) struck out 11 and allowed two hits over his six innings. The runs he surrendered came in an inning in which he had to get four outs.
His third strikeout of the sixth inning came on a slider in the dirt that bounced to the back wall and allowed Wil Myers to reach base. Christian Villanueva followed with a home run to right field.
That halved a lead the Diamondbacks had taken two innings prior.
Lucchesi (2-1) was not his sharpest, but after some trouble in the first had pitched two perfect innings to get into the fourth with the game scoreless.
A Paul Goldschmidt walk and A.J. Pollock single started the inning. After a fly ball to center moved Goldschmidt to third, Lucchesi appeared to have Pollock picked off between first and second, but his throw to first baseman Eric Hosmer sailed way high, and the ball rolled to the side wall as Goldschmidt jogged home and Pollock raced to third.
Lucchesi's next pitch went almost right to the heart of the strike zone, and Nick Ahmed skied it into the Diamondbacks bullpen beyond the left field corner to give the Diamondbacks a 3-0 lead.
Lucchesi walked Deven Marrero, who stole second and scored on Corbin's two-out single.
Back on the mound, Corbin kept rolling.
The fifth inning was his second straight perfect inning, as Corbin retired 11 straight between an Austin Hedges single that led off the third and his strikeout of Myers.
Corbin was replaced to start the seventh inning, and the Padres' only hit against three Diamondbacks relievers was a one-out double by Villanueva.
Hosmer's groundout and Jose Pirela's strikeout, the Padres' 15th of the game, were the final outs.
After winning the series opener Friday on a one-hitter by Tyson Ross and Brad Hand and three ninth-inning runs from the offense, the Padres scored in just two of their 18 offensive innings in the final two games.