Kubasaki's Arthur Parra heads for the finish line during Friday's Okinawa cross country races. Parra stayed unbeatenin four straight races, clocking 16 minutes, 14.89 seconds. (Dave Ornauer/Stars and Stripes)

Kubasaki's Arthur Parra heads for the finish line during Friday's Okinawa cross country races. Parra stayed unbeatenin four straight races, clocking 16 minutes, 14.89 seconds. (Dave Ornauer/Stars and Stripes)

Kadena's Karise Johnson closes in on the finish during Friday's Okinawa cross country races. Johnson won her third straight race, in 20 minutes, 55.57 seconds. (Dave Ornauer/Stars and Stripes)

Kadena's R.J. Smola goes airborne serving against Kubasaki's Kai Grubbs during Friday's Okinawa tennis matches. Grubbs won 8-5. (Dave Ornauer/Stars and Stripes)

Kubasaki's Kai Grubbs hits a forehand return against Kadena's R.J. Smola during Friday's Okinawa tennis matches. Grubbs won 8-5. (Dave Ornauer/Stars and Stripes)

Osan's Layla Barker serves against Humphreys' Ashley Kim during Friday's DODEA-Korea season-opening tennis matches. Kim won 8-1. (Gabrielle Brass/For Stars and Stripes)

Humphreys' Adeline Kim smacks a forehand return against Osan's Anna Purvis during Friday's DODEA-Korea season-opening tennis matches. Kim won 8-0. (Gabrielle Brass/For Stars and Stripes)

Kubasaki's Bryce Tobin tees off on the 332-yard, par-4 13th hole during Thursday's Okinawa golf at Taiyo Golf Club, Gushikawa. Tobin beat Kadena's Beau Black 1-up in the 9-hole match-play event. (Dave Ornauer/Stars and Stripes)

Kadena's Ethan Boerigter tees off on the 332-yard, par-4 13th hole during Thursday's Okinawa golf at Taiyo Golf Club, Gushikawa. Boerigter beat Drake Williams of Kubasaki 3-up in the 9-hole match-play event. (Dave Ornauer/Stars and Stripes)

Kubasaki's Bryce Tobin blasts out of the bunker on the 468-yard, par-5 10th hole during Thursday's Okinawa golf at Taiyo Golf Club, Gushikawa. Tobin beat Kadena's Beau Black 1-up in the 9-hole match-play event. (Dave Ornauer/Stars and Stripes)

High school

Cross country OkinawaFriday at Kishaba Housing Area, Camp Foster (3.12-mile course)Boys Kubasaki 24, Kadena 32 1, Arthur Parra, Kubasaki, 16 minutes, 14.89 seconds; 2, Sebastian Scherry, Kubasaki, 17:22.32; 3, Joe Renquist, Kadena, 17:30.19; 4, Jaeson Espina, Kubasaki, 17:48.23; 5, Tuck Renquist, Kadena, 17:57.41; 6, Carter Glass, Kadena, 18:02.94; 7, Nathan Rowberry, Kadena, 18:20.63; 8, Mateo Mendoza, Kubasaki, 18:51.16; 9, Payton Passage, Kubasaki, 18:53.64; 10, David Magbagbeola, Kubasaki, 19:04.13Girls Kadena 21, Kubasaki 39 1, Karise Johnson, Kadena, 20 minutes, 55.57 seconds; 2, Makayla Saeteurn, Kubasaki, 21:10.16; 3, Sierra Taysom, Kadena, 21:23.66; 4, Grace Carey, Kadena, 22:37.26; 5, Jessica Nation, Kubasaki, 22:50.96; 6, Jolyn Bates, Kadena, 23:32.83; 7, Sara Corrado, Kadena, 23:44.84; 8, Katie Gilmore, Kadena, 25:19.63; 9, Janelle Heinrich, Kubasaki, 25:59.39; 10, Keirah Allar, Kadeena, 26:11.05.

JapanFriday at Niiza Park, Tokyo (3.12-mile course)Boys Christian Academy Japan 28, St. Maur 28 1, Matthew Inamine, St. Mary’s, 17 minutes, 34.7 seconds; 2, Kairi Mano, St. Mary’s, 18:16.6; 3, Alexie Fedoroff, St. Maur, 18:43.9; 4, Koh-William Fleming, CAJ, 18:48.4; 5, Yuki Hodo, St. Maur, 18:57.5; 6, Ty Hall, CAJ, 19:13.1; 7, Cheng Tai Wu, St. Maur, 19:19.9; 8, Aidan Lowther, CAJ, 19:21.2; 9, Gabriel Cantero, CAJ, 19:36.1; 10, Taichi Ishikawa, St. Maur, 19:39.1.Girls Christian Academy Japan 21, St. Maur 34 1, Anna Stoesz, CAJ, 23 minutes, 2.4 seconds; 2, Kosuke Sumihiro, CAJ, 23:25.9; 3, Kiera Potter, CAJ, 23:26.8; 4, Kouki Sano, CAJ, 23:55.8; 5, Akari Johnson, St. Maur, 24:00.1; 6, Riko Seki, St. Maur, 24:17.1; 7, Krista Suzuki, CAJ, 24:28.4; 8, Jessica Bacon, St. Maur, 24:33.4; 9, Joy Peterson, CAJ, 24:33.6; 10, Yura Kitamura, St. Maur, 24:53.4.

Tennis South KoreaFriday at Camp HumphreysBoys Humphreys 1, Osan American 0 Singles: Daul Bae def. David Lee 9-8 (7-2)Girls Humphreys 5, Osan American 0 Singles: Ashley Kim def. Layla Barker 8-1, Stephanie Kim def. Yoonju Choe 8-3, Adeline Kim def. Anna Purvis 8-0. Doubles: Evelyn Park and Jean Weilbacher def. Felicia Lowery and Abigail Roberts 8-1, Erin Marion and Erin Ji def. MacKenzie Kosmicki and Kiana Duran 8-0.

OkinawaFriday at Kadena Air BaseBoys Kubasaki 5, Kadena 2 Singles: Kai Grubbs, Kubasaki, def. R.J. Smola 8-5; Brett Davis, Kadena, def. Aden Leggio 8-6; Justin Saavedra, Kadena, def. Henry Ruksc 8-2; Kai Croghan, Kubasaki, def. Evan Davis 9-7; Owen Ruksc, Kubasaki, def. Nathan Asato 8-6; Jaden Oshana, Kubasaki, def. TK Miyazaki 8-4; Robert Oboza, Kubasaki, def. Josh Wall 8-0.Girls Kadena 6, Kubasaki 1 Singles: Willow Lewis, Kubasaki, def. Noelle Asato 8-5; Christine Ryan, Kadena, def. Natalie Oboza 8-2; Mayann Rivera, Kadena, def. Leanna Manuel 8-2; Hana Breines, Kadena, def. Emi Nichols 8-0; Mary Tracy, Kadena, def. Liyou Sorenson 8-2; Madison Small, Kadena, def. Noemi Ung 8-2; Elizabeth Cheramie, Kadena, def. Lily Law 8-2.

JapanRobert D. Edgren Tournament Wednesday and Thursday at Misawa Air BaseSingles Championship bracket First round Jenna Mahoney def. Riley Hunt 6-0, Douglass Tackney def. Casandra Matos 6-2, Rim Gong def. Soren Marius 6-0, Aiden Smith def. Kimi Bohl 6-0, Caitlyn Carroll def. Chloe Lafitte 6-0, Isa Tackney def. Abby Erler 6-4, Michael Rice def. Owen Watts 6-1, Alyssa Singletary def. Taylor Brayden 6-0.Second round Mahoney def. D. Tackney 8-1, Gong def. Smith 8-5, Carroll def. I. Tackney 8-0, Rice def. Singletary 8-2.Third round Mahoney def. Gong 8-2, Rice def. Carroll 8-2.Fourth round Mahoney def. Rice 8-0.Knockout bracketFirst round Matos def. Hunt 6-0, Bohl def. Marius 6-1, Erler def. Lafitte 6-0, Watts def. Brayden 7-6 (7-1); Singletary def. Matos 7-5, I. Tackney def. Bohl 6-2, Smith def. Erler 6-1, D. Tackney def. Watts 6-4, Singletary def. I. Tackney 6-2, Smith def. D. Tackney 7-5.Doubles Quarterfinals Mahoney-Carroll def. Erler-Matos 6-0, I. Tackney-Singletary def. Hunt-Bohl 6-0, Rice-Gong def. Marius-Watts 6-0, Smith-D. Tackney def. Lafitte-Brayden 6-0.

Golf South KoreaThursday at Camp Humphreys (Match play, 5,643-yard, par-72)Humphreys Gold 3, Humphreys Black 2 Ethan Elliott, Gold, def. Cade White, 4-up; Mitchell Jones, Black, def. Isaac Kim, 3-up; Blake Borelli, Black, def. Kyra Vaughan, 2-up; Brandon Borelli, Gold, def. Joshua Berryman, 3-up; Owen White, Gold, def. Vincent Castellano, 3-up.

OkinawaThursday at Taiyo Golf Club, Gushikawa (Match play, 5,081-yard, par-72)Boys Kadena 4, Kubasaki 2 Bryce Tobin, Kubasaki, def. Beau Black, 1-up; Ethan Boerigter, Kadena, def. Drake Williams, 5-up; Austin Barnes, Kadena, def. Angelo Medeiros, 4-up; Matthew Ray, Kadena, def. Chett Huff, 1-up; Kyler Wallen, Kubasaki, def. Kaleb Albert, 3-up; Wyatt Boerigter, Kadena, def. Jackson Hoewig, 3-up.Girls Kubasaki 5, Kadena 0 (one match halved) Indiana Glover, Kubasaki, def. Haley Russell, 2-up; Kyla Golihugh, Kubasaki, def. Teiya Shepard, 5-up; Caroline Trowbridge, Kadena, and Shaylee Gatch, Kubasaki, halved; Julizka Aguirre, Kubasaki, def. Claire Jordan, 1-up; Lillie Brower, Kubasaki, by walkover; Alyssa Frank, Kubasaki, by walkover.