Kyle Isbel and Dennicher Carrasco both homered as the Blue Rocks defeated Salem 6-3 to complete a rally from 2 games down and claim the best-of-5 Carolina League Northern Division Championship.
After losing the first two games in Salem, the Blue Rocks had earned walk-off victories Friday and Saturday to set the stage for Sunday's winner-take-all showdown.
Isbel's homer to right in the 3rd, and Carrasco's launch to left in the 4th put the Blue Rocks ahead 2-0.
After Salem pulled a run back in the 6th, Michael Gigliotti stretched Wilmington's lead back to 4-1 on an RBI double to left.
Salem scored twice in the 8th, but were stopped from tying the game when Isbel started a perfect relay from right field that ended with Triston Casas being thrown out at the plate.
Insurance runs would come Wilmington's way in the bottom of the 8th, with a Kyle Kasser bloop RBI single, and a squeeze bunt from Michael Gagliotti.
Salem would get the potential go-ahead run on in the 9th after 3 singles loaded the bases, but Collin Snider got Tyler Esplin to pop out to shortstop Christian Perez, and set off the celebration.
Wilmington will head to the Mills Cup Championship Series for the first time since 2015, and will look for their first Carolina League Championship since splitting the title in 1999 with Myrtle Beach due to the approach of Hurricane Floyd.
The Blue Rocks will host the Fayetteville Woodpeckers for the first two games of the Best-of-5 championship series on Tuesday and Wednesday nights.
The final three games will be played Thursday, and if necessary, Friday and Saturday nights in North Carolina.