DETROIT -- Though the White Sox lost, 3-2, on a ninth-inning Michael Mahtook walk-off single Friday night at Comerica Park, manager Rick Renteria was encouraged by what he saw from rookie starter Carson Fulmer.
Fulmer (2-1, 4.50 ERA) took a no-decision, throwing six innings of one-run ball, allowing four hits and striking out five. It was his second straight quality start, and Renteria thinks the youngster is showing composure and maturity.
"He's a pretty excitable guy, has a lot of energy, but I think he's keeping it under control," Renteria said. "It's very encouraging. We walk away from his outing today very optimistic about the direction he's going as a starter."
Fulmer used a consistent mix of his fastball, cutter, curveball and changeup and thought they were all pretty effective, especially the curve, when he needed to get an out.
"I'm trying to carry over every outing into the next, and today I was able to stay in the groove," Fulmer said.

He certainly did look to be in a groove for a while, retiring eight straight Tigers between the first and third innings. That momentum carried over from his last outing on Sunday, when he allowed one run over six innings against the Giants.
Fulmer, the No. 9 White Sox prospect, according to MLBPipeline.com, is emerging as one of the better young arms in the rebuilding organization. He is embracing the opportunity he has to learn from veterans on the pitching staff.
"I think with the circumstances that we have now, there's a lot of room to grow as a baseball player and learn," Fulmer said. "The veteran guys on the staff, we are around them on and off the field, and we're just trying to soak in as much as we can. If we worry about the small things and do everything we can to do it, we'll continue to grow and have success as an organization and as a team."