The Triple-A Norfolk Tides grabbed a much-needed win over the Charlotte Knights, and the Double-A Bowie Baysox topped the Akron Aeros.
The Single-A Frederick Keys beat the Salem Red Sox, while the Single-A Delmarva Shorebirds fell in extra innings to the Greensboro Grasshoppers.
There were a couple injuries involving first basemen in the Orioles' minor league system recently.
In Thursday night's game, the Keys' Joe Mahoney tweaked his hamstring while running out a ground ball. According to the team, he is day-to-day and won't go on the disabled list.
Also, Delmarva's Tyler Townsend suffered a hamstring injury Thursday and was placed on the disabled list by the team. It's unclear when he will return at this time. In order to take his place on the roster, the Shorebirds activated catcher Michael Ohlman from the DL.
Score: Norfolk Tides 5, Charlotte Knights 3 (Box score)
Recap: Finally, Tides starting pitcher Chris Tillman (1-3) earned his first win of the season in a 5-3 victory over Charlotte.
The 22-year-old right-hander dominated the Knights, holding them to three runs and seven hits in eight innings. Tillman struck out five batters and didn't walk anyone, throwing 62 of his 90 pitches for strikes.
Norfolk designated hitter Brandon Snyder was 2-for-4 with a double and his first home run of the season, while left fielder Michael Aubrey and catcher Adam Donachie each added solo shots.
Relief pitcher Frank Mata retired the side in order in the ninth inning to pick up his second save of the season for the Tides.Bowie Baysox (AA)
Score: Bowie Baysox 12, Akron Aeros 9 (Box score)
Recap: Although starting pitcher Zach Britton was rocked by Akron at Prince George's Stadium, the Baysox outlasted the Aeros for a 12-9 win.
Britton was charged with seven runs (four earned) and eight hits in 3 1/3 innings. The 22-year-old left-hander walked three batters and collected three strikeouts.
Despite allowing two runs and four hits in 2 2/3 innings, relief pitcher Zach Clark (1-0) picked up his first victory of the season for the Baysox.
Bowie third baseman Brandon Waring contributed two hits, including a two-run home run, and first baseman Joel Guzman was 1-for-1 with a solo home run and three walks.
Baysox left fielder Tyler Henson added two hits and three RBIs, and right fielder Paco Figueroa was 2-for-4 with a stolen base, two RBIs and two runs scored.
Right-hander Jim Hoey tossed a scoreless inning for Bowie, and Eddie Gamboa recorded the final six outs in order for his second save of the season.
The Baysox committed four errors in the game -- two by shortstop Pedro Florimon and one each by Britton and second baseman Ryan Adams.
Center fielder Miguel Abreu was 3-for-5 with a run scored for Bowie.
Score: Frederick Keys 8, Salem Red Sox 4 (Box score)
Recap: The Keys scored five runs in the bottom of the seventh inning to take an 8-4 victory over Salem in the series opener at Harry Grove Stadium.
Frederick starting pitcher Kenny Moreland pitched well, allowing only two unearned runs and three hits in five innings, but he didn't factor in the decision.
Relief pitcher Sean Gleason (1-0) earned the win for the Keys after holding Salem to one run and four hits in two innings.
Keys first baseman Jacob Julius was 3-for-4 with a double, a solo home run and three runs scored, and second baseman L.J. Hoes added a triple and three RBIs.
Left fielder Xavier Avery was 2-for-5 with a double and two RBIs, and center fielder Kyle Hudson contributed two hits, an RBI and a stolen base. He was also caught stealing once.
Score: Greensboro Grasshoppers 3, Delmarva Shorebirds 2, 11 innings (Box score)
Recap: First baseman Tyler Stampone picked up two RBIs, but the Shorebirds were edged by Greensboro, 3-2, at Arthur W. Perdue Stadium.
Delmarva starting pitcher Ryan Berry shined in seven scoreless innings, holding the Grasshoppers to four hits, one walk and one hit batter. The 21-year-old right-hander collected seven strikeouts in the no-decision.
Shorebirds relief pitcher Ryan Palsha (1-1) suffered the loss after allowing a solo home run to Greensboro first baseman Brent Weaver in the top of the 11th inning.
Shortstop Garabez Rosa was 2-for-4 with a double for Delmarva.