The Eagles cruised to an 82-41 victory over the Warriors.
Purdy led 23-8 after one quarter of play and 47-17 at halftime.
Shaw Robinson led the Warriors in scoring with 9 points. Zach Crossland chipped in 7 points.
Scoring for Purdy were: Cameron Terry, 19; Glenn Scott, 15; Alex Haworth, 13; Cody Hall, 10; Drew Williams, 6; Keevin Walker and Devon Bennett, 5 each; and Austin Hancock, 2.
The Lady Eagles completed the double-header sweep with a 71-7 victory.
Purdy led from start to finish. The Lady Warriors managed 4 points in the first quarter, 2 in the second, 1 in the third and were held scoreless in the fourth period.
"We are playing our best ball of the season," said Purdy head coach Grant Young. "We need to get healthy as we make our push toward districts."
Abby Pekrek led McAuley in scoring with 4 points.
Scoring for Purdy were: Addy Roller, 35; Katie Hughes, 11; Mattie White, 9; Rachael Neill, 6; Billie House, 5; Jayse Henderson, 3; and Kat Hughes, 2.