All five affiliates in the Orioles' minor league system lost tonight.The Triple-A Norfolk Tides were edged by the Gwinnett Braves, and the Double-A Bowie Baysox lost to the Harrisburg Senators.The Single-A Frederick Keys fell to the Wilmington Blue Rocks, and the Single-A Delmarva Shorebirds were beaten by the Lakewood BlueClaws.The short-season Single-A Aberdeen IronBirds lost in extra innings to the Tri-City ValleyCats.Score: Gwinnett Braves 4, Norfolk Tides 3 (Box score)Recap: Designated hitter Brandon Snyder collected a pair of doubles, an RBI and a run scored in the Tides' 4-3 loss to Gwinnett at Harbor Park.Norfolk center fielder Jonathan Tucker was 3-for-4 with an RBI and a stolen base, and right fielder Ambiorix Concepcion added two singles and an RBI.Tides starting pitcher Jake Arrieta (5-8) gave up three runs (one earned) and four hits in 4 1/3 innings. The 23-year-old right-hander walked six batters and collected two strikeouts.Score: Harrisburg Senators 7, Bowie Baysox 3 (Box score)Recap: Left fielder Lou Montanez was 1-for-5 with an RBI in his return to the Baysox during an injury rehabilitation assignment, but they suffered a 7-3 loss to Harrisburg at Prince George's Stadium.Bowie first baseman Steve Torrealba contributed a double, a sacrifice fly and two walks, and third baseman Brandon Waring added a double and a run scored.Baysox starting pitcher Pedro Beato (1-3) allowed three runs and seven hits in seven innings. The 22-year-old right-hander struck out two batters and threw a wild pitch.Score: Wilmington Blue Rocks 5, Frederick Keys 2 (Box score)Recap: Right fielder Billy Rowell was 1-for-3 with an RBI in the Keys' 5-2 loss to Wilmington.Frederick second baseman Bobby Stevens hit a sacrifice fly, and designated hitter Wally Crancer was 1-for-4 with a run scored.Keys starting pitcher Kenny Moreland (4-2) allowed five runs and seven hits in 5 2/3 innings, and relief pitcher Pat Egan didn't give up any hits in 2 1/3 innings.Score: Lakewood BlueClaws 9, Delmarva Shorebirds 3 (Box score)Recap: Left fielder Brian Conley was 2-for-3 with a walk in the Shorebirds' 9-3 loss to Lakewood at Arthur W. Perdue Stadium.Delmarva second baseman L.J. Hoes was 1-for-4 with two RBIs, and center fielder Xavier Avery added a single and a run scored.Shorebirds starting pitcher Oliver Drake (8-9) gave up seven runs (five earned) and 11 hits in 6 2/3 innings. The 22-year-old right-hander struck out five batters.Right fielder Ronnie Welty collected an RBI for Delmarva.Score: Tri-City ValleyCats 5, Aberdeen IronBirds 4, 10 innings (Box score)Recap: The IronBirds committed four errors in a 5-4 loss to Tri-City at Ripken Stadium in the opener of the team's final series in 2009.Aberdeen designated hitter Justin Dalles was 3-for-5 with a triple, two RBIs and a run scored, and first baseman Tyler Townsend added a double and an RBI.IronBirds shortstop Garabez Rosa contributed a triple and a run scored, and catcher Brian Ward was 2-for-3 with a double.Starting pitcher Colin Allen allowed four runs (two earned) and nine hits in 5 1/3 innings for the IronBirds. The 22-year-old right-hander collected seven strikeouts and walked one batter.Aberdeen relief pitcher Jose Barajas (3-3) suffered the loss after giving up one unearned run and one hit in one inning.