Taylor Drey scored 28 points and the host Thunder cashed in from the free-throw line to win the non-league game.
Mountain View outscored Battle Ground 23-7 from the foul line, making all but six of its free throws.
The Thunder led by eight points at the end of the third quarter. Drey scored 11 of his points in the fourth quarter, when he was 5 for 5 from the line.
All eight Thunder players who saw action scored.
MOUNTAIN VIEW 60, BATTLE GROUND 53
BATTLE GROUND — Jamie Ford 11, Damien Ford 4, Daniel Duong 0, Jake Sachen 12, Kevin Haynes 9, Miles Luke 9, Colby Cahoon 0, Josh Lamar 8. Totals 20 (6) 7-11 53.