Quadrangular Twenty20 Series (Thailand) 2026/27

The Quadrangular Twenty20 Series, also referred to as the Thailand Open, is a recurring international cricket tournament hosted by the Cricket Association of Thailand. It functions as a developmental platform for ICC Associate member nations, providing senior national teams with T20 International (T20I) matches that count towards ICC rankings.

Unlike the ACC Emerging Teams Cup, which is restricted to players under 23, or direct qualification tournaments like the ACC Men's T20 World Cup Qualifier, this event does not offer direct entry to major championships. Instead, it builds competitive experience and ranking points. The format typically involves four teams playing a round-robin group stage where each team plays three matches, followed by a final and a third-place playoff.

The tournament is organized by the host nation, Cricket Thailand, often in collaboration with ICC development programs. It is characterized by its short duration, usually spanning three to four days, and its focus on emerging cricketing nations in Asia and the Middle East. The series began in February 2024, distinguishing it from permanent leagues with single founding dates.

In the 2025–26 edition held in Bangkok, the participating teams were Thailand, Bahrain, Bhutan, and Japan. Bahrain defeated Japan in the final after the match was tied and decided by a Super Over. Thailand participated in the group stage but finished last, losing to Bhutan in the third-place playoff.

This structure contrasts with the 2024 edition, which featured Thailand, Bhutan, Maldives, and Saudi Arabia. That year, Saudi Arabia won the final against Thailand by eight wickets. The current iteration highlights the evolving nature of the series, adapting participants while maintaining its core purpose of fostering growth within associate cricketing bodies.