The 2026 SEABA Under-18 Championship, also known as 2026 FIBA U18 Asia Cup SEABA Qualifiers, was the 12th edition of SEABA basketball championship for young men aged 18 and under. The qualifying tournament for the 2026 FIBA U18 Asia Cup, it was held in Krabi, Thailand, from 10 to 14 June 2026. This was the second time that Thailand hosted the event; the previous one was held in Bangkok in 1998.

The Philippines secured their 10th overall title with a victory over Thailand in the final, 85–70. Both finalists qualified for the continental championship.

Participating teams

(Hosts)

Preliminary round The official groupings were released on 24 May 2026.

All times are local (Time in Thailand; UTC+7).

Group A

Group B

Final round Championship bracket

5th–7th place bracket

Fifth place game

Semifinals

Sixth place game

Third place game

Final

Final standings RankTeamRecord 5–0 3–2 2–24 2–25 2–26 1–37 0–4 Qualified for the 2026 FIBA U18 Asia Cup

References