Tillman pitched six innings of three-hit ball, Jones went 4 for 4 with two RBIs, and the Orioles beat Felix Hernandez and the Mariners 4-2 on Wednesday night.
Drafted in the second round of the 2006 draft by Seattle, Tillman (2-3) gave up one run in his first career start against the Mariners. He threw a career-high 112 pitches, struck out five and walked three.
"It felt good," Tillman said. "First of all, it was good seeing those guys again, the few that are left. But I think that gave me a little extra boost; it got me dialed in a little bit."
Jones, Seattle's top pick in the 2003 draft, matched his career high in hits and provided the margin of victory with a two-run triple in the fifth inning against Felix Hernandez (4-3).
"I don't care about playing the Mariners anymore," Jones said. "The only thing that's cool is to still see Ichiro (Suzuki) and some of my friends, some of the guys I played with. Besides that, they're another team now."
And Bedard is just another pitcher trying to bounce back from a series of injuries. Since the trade, he's 12-11.
Tillman ended his night by striking out Adam Kennedy with runners on second and third with two outs in the sixth and Baltimore up 4-1.
"He pitched well tonight," Kennedy said of Tillman. "Don't know if that was typically him."
Tillman has been both sharp and awful this season. He threw six innings of no-hit ball against Tampa Bay on April 2, but surrendered eight runs in 3 2-3 innings against Kansas City in his last start.
Kevin Gregg, the third Baltimore reliever, worked the ninth for his seventh save.
Jones put the Orioles up 4-1 in the fifth with a two-run triple off Hernandez, the reigning AL Cy Young winner.
Hernandez allowed four runs and seven hits in five innings. It was only the second time in eight starts this season that he yielded more than two earned runs.
"My command was way off. Made a couple of mistakes and paid," the right-hander said.
Seattle manager Eric Wedge added: "Felix just didn't have the command he usually does. But he's still a great competitor and he gave us everything he had.
"It's almost unfair because even when he is a little bit off he's better than anyone else. He is human; sometimes people forget that. You're not going to be perfect every time you go out there."
Michael Saunders homered for the Mariners, who have lost four straight. Suzuki had two hits to extend his hitting streak to 14 games at Camden Yards, where he's a .389 lifetime hitter.
Baltimore used a three-run fifth inning to take a 4-1 lead. Hernandez retired the first two batters before Derrek Lee singled and Vladimir Guerrero was hit by a pitch. Luke Scott then grounded an RBI single up the middle and Jones followed with a liner to the gap in right-center.
Saunders homered off Jason Berken in the seventh.
After working a perfect first inning, Hernandez struggled the rest of the way. The Orioles used a pair of two-out singles and a walk to load the bases in the second, but Robert Andino grounded out to end the threat.
Notes: Orioles OF Nick Markakis stayed at home with a contagious strand of the flu and 3B Mark Reynolds was rested after a 9-for-71 skid dropped his batting average to .177. That left Lee as the only Baltimore player to participate in every game this season. ... Hernandez fell to 4-1 lifetime at Camden Yards. ... Roberts went 0 for 3 and is hitless in his last 26 official at-bats. ... Suzuki has 18 multihit games, second in the AL.