The Rockets erased a four-point deficit in the final five seconds of regulation, then won in overtime at the MLK Tribute in Longview.
With Castle Rock trailing 51-47, Jonny Boissonault made one of two free throws. The Rockets then stole the inbounds pass, setting up a tying 3-pointer at the buzzer by Landon Gardner.
That completed a big comback for Castle Rock, which trailed by 16 in the third quarter.
Boissonault finished with 22 points and 14 rebounds. Gardner added 12 points and Lane Partridge scored 11.
CASTLE ROCK 61, KALAMA 57, OT
CASTLE ROCK — Jonny Boissonault 22, Landon Gardner 12, Lane Partridge 11, Lance Wirkkala 0, Jayce Womack 4, Wyatt Partridge 4, Isaac Trigsted 0, Adam Partridge 8. Totals 24 (5) 8-15 61.