South Adams completed an undefeated weekend by defeating Snider at home Friday before a pair of wins in the South Adams Invitational on Saturday.
Addie Baker batted in three runs to help lead the Starfires to their 11-0 win over the Panthers on Friday.
Baker was even better in the first game on Saturday, knocking in five runs as the Starfires cruised past Churubusco, 15-1.
South Adams trailed 1-0 late in the second game against Madison-Grant. But Bekah Patterson tied the game with an RBI double in the bottom of the sixth inning.
She scored the go-ahead run later in the inning on a groundout by Baker.
The Starfires locked up the championship on their home field by retiring the Argylls in order in the seventh inning, preserving the 2-1 victory.