Still, Arrieta -- who tossed 6 1/3 innings of two-run baseball in a 6-2 O's win that clinched a series victory -- is 16 2/3 innings above his previous career high of 150 2/3, and he isn't expected to get more than two starts going forward.
"As far as shutting me down, I don't know if that's a big issue," Arrieta said following Tuesday's win, which was his second victory in as many attempts against the defending World Series champs.
"I feel great, and I've felt great from day one. I'm just looking forward to finishing out the season."
Orioles manager Buck Showalter has remained mum on exactly when Arrieta or any of the O's young arms will be done this season, because he wants them to focus on each outing and not be distracted.
For now, the O's rotation will remain on track through the weekend -- with Kevin Millwood and Jeremy Guthrie pitching the first two games in Detroit -- before the team looks into making any changes.
The Orioles currently have a six-man rotation with the addition of September callup Chris Tillman, and Showalter has said that the current order could change to allow certain pitchers to gain extra rest. The club could also opt to skip a starter altogether, a process that would lengthen the season for a pitcher like Arrieta.