BANGOR, Maine — Gage Olszak pitched 6⅔ innings of four-hit shutout ball on Thursday to help propel U.S. Central to a 7-0 victory over U.S. Southeast in a Senior League World Series semifinal game at Mansfield Stadium.

U.S. Central (3-0) earned a spot in Saturday’s 2 p.m. title game against the winner of Thursday night’s late contest between host District 3 champion Bronco-Hermon and Asia-Pacific of Melbourne, Australia.

Olszak scattered four singles, notching four strikeouts and a walk, before reaching the 95-pitch limit. He also helped his own cause with a single and two RBIs among eight hits by the team from Chicago, which is 3-0.

Paola Zavala came on to record the final out and clinch the win.

Chicago turned in a balanced offensive effort, led by two singles by Tim Molloy. Joe Trezek (double) and Dave Navarro each knocked in a run.

Leadoff batter Ethan Semones stroked two singles for U.S. Southeast of Dunfries, Virginia (2-2). Starting pitcher Carson Arguin allowed six hits and six runs (three earned) with four strikeouts and two walks in five innings.

Chicago scored all the runs it would need with a two-out rally in the fourth inning. Molloy singled, stole second and scored on Navarro’s single. The second run scored on an error.

U.S. Central tallied four runs in the fifth, with Olszak providing a two-run single.