The Cougars are locked in the Trico League’s No. 3 spot into next week’s District IV tournament and travel for a first-round district game.
First-year coach Kris Small praised his team’s energy, defense, and communication.
“Our guys really answered the call,” he said.
Gabe Anderson had a game-high 22 points for Seton and Delano Morgan added 13.
SETON CATHOLIC 75, CASTLE ROCK 29
SETON CATHOLIC — Isaiah Parker 2, Kellen Ball 6, Luke Pitzer 8, Hayden Miller 6, Malik Williams 8, Gabe Anderson 22, Delano Morgan 13, Andrew Olson 8, Griffin Young 2. Totals 31 (9) 4-4 75.
CASTLE ROCK — Connor Edwards 7, Caleb Mullen 2, Skyler King 3, Ethan Perdue 3, Jacob Holliday 0, Michael Gaze 0, Landon Gardner 10, Coleman Guerrero 0, Jonny Boissonault, Tate Creed 2, Patridge 2. Totals 11 (3) 7-9 29.
Seton 24 22 19 10–75
C.Rock 9 4 11 5–29
JV — Seton won.