The win boosted Greer’s Class AAAA Region II record to 2-1 and improved its overall record to 8-10. Union fell to 4-11 overall and 1-2 in the region.
Magic Moody scored a game-high 18 points and teammate Sam Gravley added 13. Union’s Dee Eison scored 16 point.
Greer’s 18-point fourth quarter left no room for a Union County comeback.
Greer plays Blue Ridge Tuesday in its next game.
Jonathan Stoehr contributed to this report.