PHOENIX — Tyson Ross dropped his arm into the same slot and released the ball from the same point on every pitch, no matter if it was a fastball or slider.
The Arizona Diamondbacks weren't sure what was coming next and spent the afternoon swinging through balls or pounding them into the ground.
Relying on a repeating motion that baffled Arizona's hitters, Ross outpitched All-Star Patrick Corbin with eight dominant innings and the San Diego Padres closed out their first winning road trip of the season with a 1-0 win over Arizona on Sunday.
"When your heater, changeup and slider all come from out of your hand like a fastball and then they do different things, it is difficult to pick up," said Diamondbacks left fielder Adam Eaton, who went 0-for-4.
Carlos Quentin had a run-scoring single in the first inning off Corbin (12-2) and Ross (2-4) took it from there, allowing three hits and striking out seven. Huston Street worked a perfect ninth for his 19th save in 20 chances to close out the combined three-hitter.
Behind Ross' gem, San Diego finished 6-4 to win its first road trip since Aug. 24-26 and first of six or more games since June 25-July 4, 2012.
"The guys should be proud about the way they bounced back after the All-Star break," Padres manager Bud Black said. "It was a good road trip."
Corbin had another strong outing, allowing one earned run or fewer for the 12th time in 21 starts.