Kelso got the shots to fall down the stretch after Heritage made a memorable comeback, connecting on 11 second-half 3-pointers.
Riley Noah scored 20 points and Emmitt Kinch added 19 to lead Kelso.
Heritage, trailing by 10 at halftime, took a one-point lead in the fourth quarter.
In all, the Timberwolves made 14 3-pointers. Keoni Peneueta and Nick Morse each made five 3-pointers, each finishing with 17 points.
Sanjeet Singh added 12 points, and Jander Cline scored 10 for the Timberwolves.
KELSO 75, HERITAGE 68
KELSO — John Roberts 2, Emmitt Kinch 19, Riley Noah 20, Peyton Noah 4, Reece Tack 6, Anders Gamble 0, Christian Huntington 5, Shaw Anderson 13, Nick Moore 6. Totals 24 (8) 19-24 75.
HERITAGE (2-4) — Ammon Garrison 0, Keoni Peneueta 17, Michael Taras 0, Xayvier Pitre 0, Nick Morse 17, Jander Cline 10, LaTrell Johnson 3, Josh Patton 9, Sanjeet Singh 12. Totals 25 (14) 4-7 68.
