Rosemark lost five future college players, two of whom signed with Division I schools, from last season's state runner up team and returned only four seniors with significant playing experience for the 2019 season.
Those numbers led many to believe the Rebels would take a step backward this year. That has not been the case.
Last year's team entered the region tournament as a four seed. This year's team will be seeded number one.
The Rebels beat University School of Jackson 4-1 at home Monday night to clinch the regular season DII-A, District 5 title.
Rosemark (26-4) managed just five hits, but they came at the right time, allowing the Rebels to overcome a 1-0 deficit with single runs in the second and third innings and two in the fourth.
USJ loaded the bases with one out in the top of the seventh, but Patrick Green came on relief to pick up the save with a strikeout and a ground out.
Zach Seward started on the mound for the Rebels and got the win. He struck out five, walked five and allowed three hits and a run over six innings.
Will Turner, a CBU signee, provided the bulk of the offense, going 3 for 3 with an RBI. Jonah Van Kampen and Jaxon Pennington each drove in a run and Tucker James added a single.
The Rebels finish up league play today at USJ and travel to Memphis University School on Saturday.