The Triple-A Norfolk Tides won both games of their doubleheader against the Louisville Bats.
The Single-A Frederick Keys and Single-A Delmarva Shorebirds each lost in extra innings.
Prior to today's game, the Shorebirds placed infielder Jedidiah Stephen on the 7-day disabled list, retroactive to May 16, with an elbow injury.
Delmarva later announced that Javier Santana was added to the roster from extended spring training. The 21-year-old infielder will be available for Tuesday's game against the Hickory Crawdads.
Game 1 score: Norfolk Tides 6, Louisville Bats 2, 7 innings (Box score)
Game 1 recap: After giving up a two-run home run to Louisville right fielder Jonny Gomes in the first inning, Tides starting pitcher Chris Tillman (5-0) settled down as Norfolk won, 6-2, in the first game.
The 21-year-old right-hander allowed two runs and six hits in five innings. Tillman, who is now tied for the lead in the International League in victories, struck out five batters and issued one walk for the Tides. He threw 49 of his 88 pitches for strikes.
Norfolk right fielder Jeff Fiorentino was 1-for-3 with a three-run home run in the fifth inning. Catcher Matt Wieters had a two-run triple, and first baseman Oscar Salazar was 1-for-2 with an RBI and a run scored for the Tides.
Relief pitcher Radhames Liz tossed two scoreless innings to close out the win for the Tides. He allowed two hits and lowered his ERA to 6.08.
Game 2 score: Norfolk Tides 2, Louisville Bats 0, 7 innings (Box score)
Game 2 recap: Starting pitcher David Pauley (3-3) tossed six scoreless innings, and the Tides swept the doubleheader with a 2-0 win over Louisville. The 25-year-old right-hander allowed four hits and struck out seven batters.
Norfolk right fielder Justin Christian collected an RBI double, and Wieters also added an RBI. Shortstop Jolbert Cabrera was 2-for-3 for the Tides.
Score: Lynchburg Hillcats 13, Frederick Keys 9, 11 innings (Box score)
Recap: Relief pitcher Chris Salberg (1-3) allowed five unearned runs in the top of the 11th inning after shortstop Pedro Florimon Jr. committed a throwing error, and the Keys lost, 13-9, to the Lynchburg Hillcats.
It was Florimon's 10th defensive miscue this season, and Frederick right fielder Billy Rowell and second baseman Bobby Stevens also made errors in the game.
Rowell had a solo home run and two RBIs for the Keys, and third baseman Tyler Henson added a three-run shot. Catcher Caleb Joseph was 4-for-6 with an RBI and a run scored for Frederick, while first baseman Brandon Waring collected two doubles and two RBIs.
Keys starting pitcher Nathan Nery gave up five runs (two earned) and seven hits in six innings. The 23-year-old left-hander struck out six batters and issued one walk, but he didn't factor in the decision.
Score: Hickory Crawdads 4, Delmarva Shorebirds 3, 14 innings (Box score)
Recap: Relief pitcher Brent Allar (0-1) surrendered a bases-loaded walk in the bottom of the 14th inning, and the Shorebirds suffered their seventh consecutive loss, 4-3, against Hickory.
The 24-year-old right-hander allowed two hits and walked four batters in 3 1/3 innings. He also collected six strikeouts for Delmarva in the loss.
Shorebirds center fielder Xavier Avery was 4-for-7 with a run scored, and right fielder Ronnie Welty added two hits and two RBIs.
The Crawdads tied the game with two outs in the ninth inning after left fielder Eric Fry connected for a solo home run against Shorebirds relief pitcher Joe Esposito.
Starting pitcher Ryan O'Shea gave up one run and one hit -- a solo home run to Crawdads second baseman Erik Morrison -- in six innings for Delmarva, but he didn't factor in the decision. The 22-year-old right-hander struck out six batters and issued three walks.