Guam High's Elisabelle Maratita serves against St. John's Red during Thursday's girls volleyball playoffs. Maratita had seven aces as the Panthers won in straight sets. (John Borja/For Stars and Stripes)

Guam High's Elisabelle Maratita serves against St. John's Red during Thursday's girls volleyball playoffs. Maratita had seven aces as the Panthers won in straight sets. (John Borja/For Stars and Stripes)

Jared Aguon goes up to spike for Guam High against Father Duenas Memorial Gold during Thursday's beach volleyball match. The Panthers' A and B teams won their matches, while the Friars C team won its match. (John Borja/For Stars and Stripes)

High school

Cross country GuamIndependent Interscholastic Athletic Association of Guam All-Island finals Thursday at Two Lovers’ Point (3.12-mile course)Boys Guam High 33, St. John’s 45, Father Duenas Memorial Maroon 52, Father Duenas Gold 116 1, Alex Clark, Knights, 18 minutes, 46.62 seconds; 2, Erwin EJ Manibusan, Friars Maroon, 18:54.24; 3, Joseph Schwartz, Panthers, 19:30.34; 4, Adam Cruz, Knights, 19:41.21; 5, Sean Muller, Panthers, 19:48.91; 6, Gavin Baker, Friars Maroon, 19:49.19; 7, Aidan Puga, Panthers, 19:49.44; 8, Trayton Crandell, Panthers, 20:00.13; 9, Leyton Milner, Knights, 20:04.89; 10, Alex Rink, Panthers, 20:06.28.Girls Guam 18, St. John’s 52, Academy of Our Lady of Guam 57 1, Liliana Fennessey, Panthers, 20 minutes, 57.76 seconds; 2, Molly Lang, Panthers, 21:09.21; 3, Sameha Wilbanks, Panthers, 22:29.01; 4, Hailey Burns, Panthers, 25:42.22; 5, Maeva Konroy, Knights, 26:20.56; 6, Kasey Xu, Knights, 26:35.56; 7, Nierra Ubaldo, Cougars, 27:03.19; 8, Michaela Schwappach, Panthers, 27:45.58; 9, Jenny Mann, Knights, 27:52.93; 10, Kaila Castro, Panthers, 28:09.03.

Beach volleyball GuamThursday at DededoBoys A teamsGuam High def. Father Duenas Memorial Gold 21-14, 21-18 B teamsGuam def. Father Duenas Gold 18-21, 21-10, 15-12 C teamsFather Duenas Gold def. Guam 21-8, 21-13 Kills — Panthers: Keenan Fejeran 6. Block points — Terrell Rosario 3.Girls playoffsGuam (Elisabelle Maratita-Kailee Guerrero) def. St. John’s Red 21-17, 21-18 Aces — Maratita 7.Guam (Reese Artero-Eden French) def. St. John’s White 17-21, 21-17, 15-8 Aces — Artero 17. Block points — French 3.