(SportsNetwork.com) - The Houston Astros eye another series win on the road Wednesday when they play the rubber match of a three-game set with the Baltimore Orioles at Camden Yards.

Jason Castro's go-ahead RBI double in top of the seventh inning helped Houston to a 4-1 win on Tuesday night. Scott Feldman (4-4) allowed a run on four hits and three walks over six innings for the Astros, who have won three of their last four games.

Houston, which owns the league's best road mark at 15-7, has yet to lose a road series this season.

"We play complete games and that's the best way for me to describe it," said Houston manager A.J. Hinch. "They give us 27 outs and we maximize all of them the best we can."

Chris Tillman (2-6) surrendered two runs on five hits and three walks over seven frames for Baltimore, which has dropped three of its last four.

"There's a lot of positives tonight with the way I was able to execute pitches," said Tillman. "I was able to work all four pitches well and there's some positive things for me to take away from this."

Getting the call for the Orioles on Wednesday will be righty Ubaldo Jimenez, who is 3-3 with a 2.82 ERA. Jimenez did not get a decision on Friday in Miami, as he allowed three runs and seven hits in four innings of his team's 8-5 win.

Jimenez has faced the Astros nine times and is a perfect 4-0 against them with a 2.24 ERA.

Houston, meanwhile, will turn to righty Collin McHugh, who has lost two of his last three starts. McHugh pitched well in Detroit on Friday, but was charged with the loss, as he surrendered three runs and nine hits in seven innings to fall to 5-2 to go along with a 4.06 ERA.

"I was pretty bad," said McHugh, who gave up at least one hit in ever inning. "I was pretty bad with the fastball command. Too many cutters. Too many hard- hit balls. I was behind too many batters. They had nine hits in seven innings. Every mistake I made, they were hitting hard. No, I didn't feel very good about it."

McHugh did not get a decision in his only other start versus the Orioles.

Baltimore took four of seven from the Astros last season.