🏀 Introduction: A Summer of High School Hoops
Welcome to Issue #2 of Rising Sun Hoops!
This week, we’re diving into Japan’s biggest high school basketball tournament — the Inter-High.
Many of today’s national team players — and even future NBA and NCAA stars — first made their name on this stage.
1️⃣ What is the Inter-High?
The Inter-High School Championships is one of two national tournaments in Japan:
Inter-High: Held every summer (July–August). The 2025 edition takes place in Okayama Prefecture.
Winter Cup: Played in December, originally a spring event, and now widely seen as the season’s grand finale.
This seasonal split mirrors baseball, Japan’s most popular sport, where the summer tournament is the pinnacle — while the school year starts in April.
2️⃣ Who Plays and Why It Matters
Most competing teams are private high schools that recruit top junior high prospects nationwide.
Many programs feature foreign-born players — often from Africa — adding size and athleticism.
While B.League youth academies have emerged since the league’s launch, top talent still gravitates toward high school teams because of the national exposure that Inter-High and Winter Cup provide.
🌍 Notable International Alumni
🇸🇳 Maurice Ndour: From Senegal, starred at Okayama Gakugeikan, moved to a JUCO in New York, and later to Ohio University (D1).
🇳🇬 Nelly Junior Joseph: From Nigeria, played at Kochi Chuo HS, then joined NBA Academy Africa, and later played at Iona and New Mexico under Rick & Richard Pitino.
3️⃣ Stars Born from the Inter-High
Yuta Watanabe: Jinsei Gakuen → St. Thomas More → George Washington Univ → NBA
Rui Hachimura: Meisei HS → Gonzaga Univ → NBA
Keisei Tominaga: Sakuragaoka HS → Ranger College (TX) → Univ of Nebraska
Yuki Kawamura: Fukuoka Daiichi → Tokai Univ (left early) → B.League (Yokohama B-Corsairs)
4️⃣ 2025 Teams & Players to Watch
Fukuoka University Ohori HS: This year’s championship favorite, with a deep roster and elite coaching.
→ Produced Yuto Kawashima, now at Seattle University (D1) via NBA Global Academy.Yoshinosuke Murakami, Manoel Hajime Santos, and Chuson Jack Shiratani (Ohori):
→ Murakami and Santos were featured in Prospective Insight’s.
→ Shiratani, a 16-year-old freshman, was recently called up to Japan’s senior national team camp — a rare honor.
This year’s field is highly competitive, with no clear dominant team.
🔜 Coming Up Next
A full breakdown of Japan’s national team as they head into Asia Cup 2025, missing key stars.
University summer leagues and B.League U22 prospects to watch.
📣 Join the Movement
Share your favorite high school teams or players with #RisingSunHoops
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