The Triple-A Norfolk Tides were edged by the Rochester Red Wings, and the Double-A Bowie Baysox fell to the Altoona Curve.
The Single-A Frederick Keys topped the Kinston Indians, and the matchup between the Single-A Delmarva Shorebirds and Hagerstown Suns was postponed due to rain.
The short-season Single-A Aberdeen IronBirds pounded the Lowell Spinners, and the Rookie-level Bluefield Orioles were beaten by the Pulaski Mariners.
Score: Rochester Red Wings 2, Norfolk Tides 1 (Box score)
Recap: Catcher Robby Hammock hit a solo home run in the top of the sixth inning, but the Tides were unable to hold the lead in a 2-1 loss to Rochester.
The Red Wings scored two runs (one earned) against Norfolk relief pitcher Josh Perrault (1-2) in the bottom of the ninth. The 27-year-old right-hander only recorded one out before losing the game.
Starting pitcher Jake Arrieta was impressive for the Tides in the defeat. The 23-year-old right-hander only gave up two hits and two walks in seven scoreless innings. Arrieta struck out six batters.
Tides center fielder Joey Gathright was 1-for-3 with a walk, while first baseman Rhyne Hughes and left fielder Freddy Guzman each added a single.Bowie Baysox (AA)
Score: Altoona Curve 7, Bowie Baysox 6 (Box score)
Recap: Third baseman Josh Bell hit a two-run home run in the seventh inning, but he also committed a throwing error as the Baysox lost, 7-6, to Altoona at Prince George's Stadium.
Bowie designated hitter Paco Figueroa was 2-for-4 with a double, a triple, two RBIs and a run scored, while first baseman Eric Crozier added a solo home run.
Baysox starting pitcher Brandon Erbe gave up four runs (two earned) and four hits in 4 1/3 innings. The 21-year-old right-hander struck out six batters and issued four walks.
Second baseman Miguel Abreu hit a double for the Baysox.
Bowie relief pitcher Ryan Ouellette (4-5) allowed one unearned run, one hit and one walk in two innings, and relief pitcher Eddie Gamboa surrendered two unearned runs, one hit and three walks in 1 2/3 innings.
Score: Frederick Keys 7, Kinston Indians 4 (Box score)
Recap: Starting pitcher Kenny Moreland allowed one run and two hits in six innings during the Keys' 7-4 victory over Kinston.
Frederick shortstop Pedro Florimon Jr. and third baseman Brandon Waring hit back-to-back home runs in the third inning.
Keys relief pitcher Jake Stevens (4-6) tossed 1 2/3 scoreless innings, and closer Brandon Cooney recorded the final three outs for his fourth save.
Designated hitter Matthew Tucker contributed two hits for the Keys, and first baseman Robbie Widlansky added an RBI.
Tonight's game between the Shorebirds and Hagerstown at Arthur W. Perdue Stadium was rained out. The two teams do not play again in Salisbury this season, so the game won't be rescheduled unless the South Atlantic League rules that it is necessary due to playoff implications.
Score: Aberdeen IronBirds 11, Lowell Spinners 0 (Box score)
Recap: Shortstop Garabez Rosa hit a three-run home run as part of a seven-run first inning, and the IronBirds cruised to an 11-0 victory over Lowell at Ripken Stadium.
Aberdeen center fielder Steve Bumbry was 3-for-5 with a double, two RBIs and two runs scored, and third baseman Tom Edwards added two hits, an RBI and two runs scored.
IronBirds starting pitcher Colin Allen (2-5) allowed five hits in six scoreless innings. The 22-year-old right-hander struck out five batters and issued one walk.
Right fielder Brian Conley contributed a triple and two runs scored for the IronBirds, and designated hitter Tyler Kelly collected a single, two walks and two runs scored.
Score: Pulaski Mariners 11, Bluefield Orioles 6 (Box score)
Recap: First baseman Edinho Meyer collected two doubles, an RBI and three runs scored in the Orioles' 11-6 loss to Pulaski.
Bluefield shortstop Javier Santana was 2-for-5 with a double and a run scored, and third baseman Mike Flacco added a triple, a single and an RBI.
Orioles catcher Dashenko Ricardo collected two hits, two RBIs and a stolen base, and center fielder Michael Planeta was 1-for-3 with a run scored.
Starting pitcher Jesse Beal (5-4) allowed nine runs (six earned) and nine hits in 4 2/3 innings for the Orioles. The 19-year-old right-hander collected one strikeout and walked one batter.