• WBC MuayThai championship title contests must be contested in a ring.
• Ring size: minimum 18 ft / 5.5 m, maximum 24 ft / 7.3 m.
• The ring must have 4 ropes, an approved safety mat, corner pads, accessible stairways and medical access.

• 8 oz: Minimumweight through Welterweight.
• 10 oz: Super-Welterweight through Heavyweight.

• Soft hand bandages: maximum 6 metres long and maximum 5 centimetres wide per hand.

• MuayThai shorts, no shirt, no shoes.
• Mandatory groin protection; form-fitted gum shields are mandatory.
• Fingernails and toenails must be closely trimmed.
• Mongkon is worn for Wai Kru / Ram Muay before the bout; Prajiad may be worn during the bout subject to the rules.
• Approved ankle supports may be used. Jewelry and dangerous ornaments are prohibited.

• The normal official weigh-in takes place 24–30 hours before the scheduled fight.
• Before the weigh-in, fighters must undergo a physical examination by the event doctor.
• Female fighters must be allowed private weigh-ins conducted by female officials or witnesses.
• The rules also provide for safety weigh-ins and pre-fight weight monitoring.

• Professional WBC MuayThai championship bouts: 5 rounds of 3 minutes, with 2 minutes’ rest.
• Female bouts may follow different applicable rules: 5 rounds of 2 minutes with 2 minutes’ rest.
• Professional female championship bouts may be contested over 3-minute rounds where the required local commission, camps and WBC-appointed supervisor agree in writing.

• Before the bout, fighters pay homage to the ancient arts and customs of MuayThai.
• The WBC rules describe it as “a cultural art form unique to the sport and culture of MuayThai.”

MuayThai scoring is not simply about throwing the most strikes.

• Judges consider effective use of fists, feet, knees and elbows, damage, effective aggression, ring craft, defensive skills and disruption.
• Powerful and effective techniques score higher than weaker techniques.
• Typical round scores: 10–10, 10–9, 10–8, 10–7 and 10–6.

• A knockdown may occur when a fighter falls from a legal strike, is helplessly supported by the ropes, or remains standing but cannot adequately defend themselves.
• The referee sends the opponent to a neutral corner and counts. If the fighter cannot recover before ten, the result is a KO.

• Prohibited actions include biting, eye poking, spitting, headbutting, groin strikes, illegal throws and wrestling techniques.
• Grabbing the ropes for unfair advantage, disobeying the referee, illegal strikes to prohibited areas and deliberate rule violations are also prohibited.

• The referee’s primary responsibility is fighter safety: upholding the rules, maintaining fairness, controlling the bout, inspecting gloves, attire and gum shields, warning fighters and stopping illegal actions.
• Official commands: YUD (stop), YAK (separate), CHOK (fight).

• A ring doctor must be present, checking fighters’ physical condition, giving medical advice, assisting the referee when requested, providing medical attention and supporting applicable anti-doping testing.
• Fighter safety is a central part of WBC MuayThai competition.

• Fighters may not use prohibited drugs or substances. Violations may result in penalties and suspension from MuayThai activities.

• The minimum age for a WBC MuayThai professional title outside Thailand is 18 years old.

• Under WBC MuayThai rules, champions should generally defend their title at least twice per year unless authorized otherwise, and title periods differ by championship level.
• Nepal-specific defense deadlines will be published once confirmed by WBC MuayThai Nepal.