The Triple-A Norfolk Tides topped the Lehigh Valley IronPigs, while the Double-A Bowie Baysox lost to the Reading Phillies.
The short-season Single-A Aberdeen IronBirds dropped a decision to the Brooklyn Cyclones.
The Rookie-level Bluefield Orioles kicked off their season with a loss to the Pulaski Mariners, and the Rookie-level GCL Orioles pounded the GCL Twins.
The Single-A Frederick Keys and Single-A Delmarva Shorebirds were idle as each of their leagues participated in their respective All-Star contests.
Earlier today, left-handed pitcher Nathan Nery was promoted to the Baysox from Frederick in order to start tonight's game. Also, left-hander Chris George was sent back to Norfolk after spending a day with Bowie.
Score: Norfolk Tides 9, Lehigh Valley IronPigs 4 (Box score)
Recap: Left fielder Jeff Salazar was 2-for-5 with a home run, three RBIs and two runs scored in the Tides' 9-4 win over Lehigh Valley at Harbor Park.
Salazar is hitting .279 with 12 home runs and 32 RBIs in 61 games for Norfolk this season.
Tides second baseman Robert Andino added a pair of doubles and two runs scored, while third baseman Josh Bell was 2-for-4 with a double.
Norfolk starting pitcher Tim Bascom (1-2) picked up his first Triple-A victory after holding the IronPigs to two runs and six hits in five-plus innings.
First baseman Nolan Reimold was 0-for-5 with two strikeouts for Norfolk.Bowie Baysox (AA)
Score: Reading Phillies 7, Bowie Baysox 5 (Box score)
Recap: Third baseman Brandon Waring was 2-for-4 with a double, a home run and three RBIs as the Baysox lost, 7-5, to Reading.
Nery (0-1) was roughed up for five runs and 11 hits in five innings during his Double-A debut.
Phillies prospect Domonic Brown was 3-for-4 with two home runs and three RBIs. He is batting .325 with 15 home runs and 46 RBIs for Reading this season.
Baysox first baseman Joel Guzman contributed two hits, including a double, and two runs scored, while catcher Caleb Joseph added an RBI.
Score: Brooklyn Cyclones 9, Aberdeen IronBirds 3 (Box score)
Recap: Left fielder Tyler Kolodny hit a two-run home run, but the IronBirds were beaten, 9-3, on the road against Brooklyn.
Aberdeen designated hitter L.J. Hoes was 1-for-3 with an RBI and a run scored, and shortstop Pedro Florimon was 1-for-4. Both players are on injury rehab assignments with the IronBirds.
IronBirds starting pitcher Tim Adleman, the Orioles' 24th-round selection in this year's MLB draft, tossed four scoreless innings in his professional debut.
First baseman Mike Flacco was 1-for-2 with two walks for Aberdeen.
Relief pitcher Bruno Sanchez (0-1) was charged with eight runs, six hits and three walks in two-plus innings for the IronBirds. He also threw a wild pitch.
Score: Pulaski Mariners 8, Bluefield Orioles 4 (Box score)
Recap: Starting pitcher Jarret Martin (0-1) allowed four runs (two earned) and three hits in four innings as Bluefield lost, 8-4, to Pulaski.
Martin struck out seven batters and issued three walks in his professional debut.
Orioles left fielder Kyle Hoppy was 2-for-5 with a double, an RBI and a run scored, while right fielder Luis Ramirez added a single, a triple, an RBI and a run scored.
Bluefield center fielder Brenden Webb was 1-for-2 with an RBI and a stolen base.
Score: GCL Orioles 6, GCL Twins 1 (Box score)
Recap: Designated hitter Felix Pie was 1-for-4 with a run scored in his second game as the Orioles won, 6-1, over the Twins.
Relief pitcher Michael Gonzalez started the game for the Orioles as part of his injury rehabilitation assignment. He struck out two batters and allowed one hit in one scoreless inning.
Orioles shortstop Jonathan Schoop collected two hits, two RBIs and a run scored, while left fielder Preston Hale added a triple and two RBIs.
Right-handed pitcher Aaron Swenson (1-0) tossed four no-hit innings to pick up the victory for the Orioles. He walked two batters and collected four strikeouts.
Score: California League All-Stars 4, Carolina League All-Stars 3 (Box score)
Recap: Keys relief pitcher Jose Duran suffered the loss after giving up one run and one hit in the ninth inning as the Carolina League All-Stars fell, 4-3, to the California League All-Stars.
Keys players fared much better offensively in the game.
Frederick shortstop Greg Miclat was 2-for-2, while left fielder Ronnie Welty added a single and an RBI.
Score: North All-Stars 5, South All-Stars 5 (Box score)
Recap: Who says All-Star games can't end in ties anymore?
The South Atlantic League contest was ruled a 5-5 tie after 10 innings.
Shorebirds center fielder Brian Conley was 0-for-1 with a walk before he was replaced in the game, while second baseman Garabez Rosa was 0-for-2.
Delmarva starting pitcher Jesse Beal tossed the fourth inning for the North squad, allowing one run and two hits. He struck out one batter.