Alexis Ortiz struck out seven in a three-inning no-hitter as Battery Creek blanked Bluffton 15-0 on Monday to clinch the outright Region 8-3A title.
Emily Crosby hit a grand slam and Kelsey Hill also homered for the Dolphins.
Crosby was 2-for-3 with two runs and four RBIs, and Hill was 2-for-2 with three runs and two RBIs to lead the offense. Ortiz added two hits and an RBI, and Michaux Gee was 2-for-2 with two runs and two RBIs.
Ortiz issued three walks but allowed the Bobcats to put only two balls in play.
The Dolphins (18-5, 10-0) travel to Bluffton for the second game of the three-game series at 7 p.m. Wednesday.