Guam High's Treydan Rosario sends a jump serve against St. John's during Saturday's Guam boys beach volleyball match. The Knights won all three matches. (John Borja/For Stars and Stripes)

High school

Tennis GuamFriday at TamuningGirls St. John’s 32, Guam High 7 Singles Kaia Malakooti by walkover, Aprile Kim def. Mina Noble 8-6.Doubles Rachel Seo and Ina Choi def. Jennifer Napalan and Ashley Blocker 8-1, Caitlin Alcairo and Kaylie Cho def. Trisha Nuque and Britten Steffens 8-0.

Beach volleyballSaturday at DededoBoys A teamsSt. John’s def. Guam 21-14, 12-21, 15-8 B teamsSt. John’s def. Guam 21-9, 21-17 C teamsSt. John’s def. Guam 21-17, 21-19Digs — Panthers: Caiden LaBreche 7. Blocks — Panthers: Oen Hofschneider 9. Friday at DededoGirls A teamsGuam Blue def. St. John’s White 21-6, 21-19 B teamsSt. John’s White def. Guam Blue 21-12, 21-19 C teamsGuam Blue def. St. John’s White 21-13, 21-7 Kills — Panthers: Kamryn Thompson 9. Aces — Panthers: Elisabelle Maritita 14, Jada Alcantara 10.