Harper went 2-for-4 and raised his average to .376 as Class A Hagerstown fell to Delmarva, 3-2. The 18-year-old's mark has increased substantially from mid-April -- he was batting .231 on April 18.
The No. 1 pick in the 2010 Draft entered the game batting .467 over his last 12 games, with four homers and 10 RBIs in that span. He was named the South Atlantic League's Offensive Player of the Week on Monday, his first such honor.
The lefty-swinging right fielder singled to lead off the fourth, but struck out in each of his last two at-bats.
Schutz, the Orioles' 19th-round pick in 2009, stole the limelight in the eighth with a runner on third and two outs, making a leaping catch at the wall in left field to rob a potential go-ahead home run shot by David Freitas.
Schutz, from Evansville, Ind., has 11 RBIs in his last 10 games and is hitting .373 this year as Delmarva's cleanup hitter. He doubled and knocked in two in the win.
Suns starter Robbie Ray, Washington's 12th-round pick last year, allowed one hit over five innings in his first career start. He struck out six and did not walk a batter.
The southpaw from Brentwood, Tenn., saw his Draft stock dip last summer when most clubs thought he'd commit to the University of Arkansas, but a $799,999 signing bonus from the Nats changed his mind.
The Shorebirds have won four straight games and 15 of their last 17 games.