The first action of the game came in the fourth minute when RBL counter attacked with Sion Green, who found Daniel Minto just five yards out, but he fluffed his lines and Jacko Lysask saved well for Mickleover Sports.
Several minutes later Joshua Piggot dribbled past two Mickleover Sports defenders, shot towards the front post, and was denied once again by Lysask.
Moments later Mickleover Sports got their first chance of the game as a free-kick was crossed into the box towards James Ogiste, but he could only guide it onto the post and the game remained goalless with fifteen minutes gone.
With few clear cut chances in the first twenty minutes, both teams were careless with the ball and struggled to make any real impact.
RBL managed to counter once again with Jake Dickenson finding Green, but he could only manage to shoot wide.
With the game opening a little, Mickleover Sports managed to break down the left with Jack Thatcher, who's cross ended up bundling into the net off an RBL defender, as Mickleover Sport Reserves went one-nil up in the cup final.
However just seconds later, almost straight from kick-off, Mickleover RBL forced an equaliser and this time it was Sports Reserves who were putting it in their own net.
RBL had taken advantage of the Sports Reserves celebrations, scoring while they were switched off.
The teams went into the break level, with one goal-a-piece.
The second half lacked any clear-cut chances until the 67th minute when Clinton Morrison was forced to clear an effort off the line following a corner, but the game stayed at 1-1.
It was at the 70-minute mark when Mickleover RBL scored what would be the eventual winner. Daniel Minto latched onto a fantastic through ball, carving open the defence and coolly slotting the ball into the bottom right corner.
Mickleover Sports Reserves responded by pushing Clinton Morrison up-front as they searched for an equaliser, but RBL held on despite a series of consecutive fouls by the trailing side.
The referee brought the contest to an end, and Mickleover RBL were crowned the 2019 winners of the DCFA Divisional South Cup, beating off their local rivals in-front of the 227 attending fans.
The DCFA County Cup Finals continue on Sunday, as Rangers take on Buxton Stags in the Sunday Junior Cup, and Edge Hill face Brittania in the Sunday Senior Cup.