READING, Pa. — The Portland Sea Dogs (36-33) and Reading Fightin Phils split an Eastern League doubleheader on Tuesday night at First Energy Stadium. Portland dropped the opener 4-1, but won the nightcap 3-0. The game was delayed at the start, one hour and nine minutes due to rain.

In the opener, righthander Seth Rosin (4-4) tossed a complete game, three-hitter in Reading’s 4-1 win in game one of the twinbill. Rosin gave up one run, one walk and fanned five in his first career complete game.

Rosin was perfect in four of seven innings, and earned his first win since May 25 at Harrisburg.

Matt Barnes (3-4) suffered his third straight loss, giving up two hits, two runs (not earned) on two walks and six strikeouts.

Reading took a 2-0 lead, scoring earned runs in the second and third innings off Barnes. Sebastian Valle gave the Fightin Phils a 1-0 lead on a run-scoring groundout and a wild pitch by Barnes in the third scored Tommy Mendonca.

Michael Almanzar picked up Portland’s first hit, a twoout, run-scoring single in the fourth.

In the nightcap, Travis Shaw cleared the bases with a double in the third and Charlie Haeger (3-3) tossed 5.2 scoreless as Portland won, 3-0.

Haeger scattered four hits, and stranded eight runners, holding Reading 0-for-7 with runners in scoring position.

Spot-starter Bobby Bramhall (0-1) lasted only 2.2 innings giving up three unearned runs on two hits, two walks and three strikeouts.

Rafael Perez got the final four outs for his first save in the Red Sox system.

Shaw finished 2-for-4.