Glasnow, baseball's No. 9 overall prospect, has dominated opposing hitters his last two times out. Over his last two starts, the 6-foot-8 right-hander has racked up 16 strikeouts without a walk while allowing four hits over 13 shutout innings.
It's an encouraging turn for Glasnow, who sat out from May 17 until June 19 with a sprained right ankle. He made two rehab starts, returned to Altoona and started piling up strikeouts like usual.
Glasnow improved to 4-2 for Altoona and lowered his ERA to 2.12 in 10 starts.
The Curve's two, three and four hitters backed up Glasnow at the plate Thursday night. Second baseman Max Moroff went 2-for-3 with a double and a triple. Left fielder Jose Osuna homered.
First baseman Josh Bell -- Pittsburgh's No. 3 prospect, back from the SiriusXM All-Star Futures Game -- finished the game 2-for-4 with two RBIs.
Pirates sign two Draft picks
Pittsburgh announced deals with fifth-rounder Brandon Waddell and 27th-rounder Ryan Nagle on Thursday, a day before the Draft signing deadline.
Both players were assigned to Short-Season Class A West Virginia. The Pirates have now signed 33 of their 41 Draft picks.
Waddell, a left-handed pitcher from the University of Virginia, agreed to a $315,000 signing bonus, according to MLB.com's Jim Callis. He went 5-5 with a 3.93 ERA in 19 starts during his junior season and won the final game of the College World Series against Vanderbilt.
Nagle, an outfielder from the University of Illinois, hit .339 with three home runs and 34 RBIs last season.
Adam Berry is a reporter for MLB.com. Follow him on Twitter at @adamdberry. This story was not subject to the approval of Major League Baseball or its clubs.