Overview
- The 105th National High School Rugby Tournament opened at Hanazono on Dec. 27 and wrapped up first-round play on Dec. 28.
- Akita Technical beat Senda Matsudo 22–11, Nihon Koku Ishikawa defeated Hokue 42–17, and Takanabe topped Morioka Technical 41–7 to move on.
- Seiko Gakuin secured its first-ever tournament victory with an 18–17 win over Kinki University Wakayama.
- North Hokkaido’s Engaru exited in the opening round after a 5–74 loss to Onomichi on Dec. 27.
- Second-round fixtures are set for Dec. 30, when seeded teams make their tournament debuts.