Danny Black scored on a fifth-inning error and the Jacksonville Suns beat the Biscuits 1-0 in the finale of Friday's doubleheader.
With the bases loaded and two outs, J.T. Realmuto hit a groundball that shortstop Robi Estrada juggled. Realmuto beat the play at first, allowing Black to score from third.
The Biscuits finished with just four hits and one walk against five Jacksonville pitchers.
Montgomery starter Enny Romero allowed just one hit with three walks and eight strikeouts in five innings. Reliever Jimmy Patterson threw two perfect innings.