Origin: Nakhon Ratchasima (Korat)
The straight-punching, forward-pressure style of the rural Northeast.
Muay Korat is the regional style of Northeast Thailand — the Isaan region — and is known for one signature technique above all others: the Mahd Khwai, the Buffalo Punch. It's a wide, looping, full-body straight that Korat fighters historically used to end fights in single shots, channelling the kind of agricultural strength developed by working in the rice fields and handling water buffalo. The style is forward-pressure, heavy-handed, and committed.
The defining characteristic of Muay Korat is the Mahd Khwai, a massive looping rear hand that the fighter throws with full body weight behind it. Unlike a tight orthodox cross, the Korat punch travels in a wide arc that uses the entire torso as a lever — closer in mechanics to a Western overhand right, but with the body commitment of someone trying to drive a stake into hard ground. Beyond that signature strike, Korat fighters traditionally favour aggressive forward pressure, simple but punishing combinations, and a willingness to absorb punishment to deliver damage. The style sacrifices technical refinement for power. It does not prize ring craft or evasion the way the Lopburi or Chaiya styles do; it asks the fighter to plant his feet and finish the opponent.
Korat (Nakhon Ratchasima) is the gateway to Isaan, the agricultural heartland of Thailand. The style developed in the rural buffalo-farming communities where physical labour produced the kind of body that could throw a Mahd Khwai with real intent. During the late 19th and early 20th centuries, Korat-style fighters from Isaan dominated the early formal Muay Thai tournaments held in Bangkok. The most celebrated of them, Khun Plaeng Janthongdee (Daeng Thaiprasoet), was awarded the title Muen Changat Choeng Chok by King Chulalongkorn (Rama V) for his Korat-style fighting prowess.
Pure Muay Korat as a distinct competitive style has largely been absorbed into modern stadium Muay Thai. The Mahd Khwai survives as the technical concept of the heavy looping power punch, and many Isaan fighters today still bring elements of the forward-pressure, hands-heavy style to their game. The Sitmonchai gym in Kanchanaburi, while not strictly Korat, is the most visible modern carrier of the boxing-and-low-kicks heavy template that descends from this lineage. Watching old archive footage of Sangtiennoi or modern Pornsanae fights is the closest you'll get to seeing the spirit of Muay Korat in action today.