Origin: Tak / Uttaradit
The fast-footed, angular, teep-heavy northern style.
Muay Tha Sao is the regional style of northern Thailand, particularly the area around Tak province and the historical Lanna kingdom. The fourth regional style, Tha Sao is defined by speed and angles — quick feet, fast strikes, aggressive use of the teep, and angular movement that creates openings the opponent can't predict. It's the most mobile of the regional styles, the one that asks fighters to dance rather than dig in.
Tha Sao fighters move constantly. Footwork is the foundation — small, fast steps that change angles, repositions during exchanges, and stepping off the centre line whenever the opponent commits. The teep (push kick) is a primary weapon, used both offensively to disrupt the opponent's setup and defensively to prevent them from closing distance. Combinations are short and fast: jab-cross-teep, teep-round kick, double teep into angle. The style does not favour clinch-heavy exchanges — Tha Sao fighters want to keep the fight at range and use mobility to avoid being trapped.
Tak province was on the western border of the Siamese kingdom, adjacent to what is now Myanmar (Burma), and the regional fighting style developed in the context of constant border conflicts. The proximity to Burmese fighting tradition (lethwei) influenced the style — both share an emphasis on speed and mobility — though the relationship is more sibling than parent-child. The historical Lanna kingdom (centred on Chiang Mai) maintained its own distinct martial culture that fed into what became Muay Tha Sao. The classical four-region saying calls out Tha Sao for being ‘quick’, the defining adjective for the style.
Modern northern Thai fighters often retain elements of the Tha Sao mobility template, and the style's emphasis on the teep has influenced training universally — the teep is one of the most important weapons in modern Muay Thai across all styles. Pure Muay Tha Sao as a competitive identity has largely faded into the broader stadium Muay Thai vocabulary, but the concept of fast-footed, angle-based fighting survives in any technical fighter who relies on movement to control the action. Some northern Thai gyms still claim Tha Sao lineage and emphasize its principles in training.