The Panthers are 19-2 on the year, 3-0 in District 16-3A action, with Joey Hector at the helm.
Spring Hill pounded Gilmer for four runs in the first inning, three in the third, and single runs until the 10-run rule took effect after six innings.
Dylan Brown opened on the mound and Talyn Cellucci relieved him in the sixth to combine for the shut out.
Ben Hollas tripled, doulbed, and singled to lead the Panther hitters, while Greg Martens tripled and Johnny Arellano doulbled.
Jordan Parrish doubled and singled and Luke Turner contribued two hits to prevent a no-hitter.
Turner, 3-2, was the losing pitcher.
Gilmer traveled to Henderson Tuesday and will finish the first round of district play against Pittsburg here Friday.