ច្បាប់ផ្លូវការនៃគុនខ្មែរ
Official Rules of Kun Khmer
The complete regulatory framework governing Cambodia's national martial art, from ring specifications to scoring criteria
Modern Kun Khmer competition operates under a codified rule set administered by the Kun Khmer Federation and enforced by trained referees and judges. While the spiritual and cultural elements of the art are preserved, the sporting framework ensures fairness, safety, and consistent scoring across events.
The rules cover eight key areas: weight classes, round structure, legal and illegal techniques, scoring criteria, knockdown procedures, equipment requirements, judge decisions, and referee authority. Understanding these rules is essential not just for competitors, but for anyone who wants to appreciate Kun Khmer bouts at a deeper level.
Kun Khmer Scoring Criteria
4-axis judge scoring — adjust sliders to see how your fighter comparesInteractiveLegal & Illegal Target Zones
Where you can — and cannot — strikeKun Khmer Weight Classes
Official divisions from Mini Flyweight to Super HeavyweightGoverning Bodies
KBSF
Khmer Boxing Sports Federation
The primary governing body for Kun Khmer in Cambodia, responsible for sanctioning professional and amateur bouts, licensing fighters and trainers, and setting the official rules of competition. The KBSF works closely with the Cambodian Ministry of Education, Youth and Sport to promote the art domestically and internationally.
FKBSC
Federation of Khmer Boxing Sports Cambodia
An additional regulatory body that works alongside the KBSF to oversee competitive Kun Khmer, particularly in organizing national tournaments and coordinating with regional Southeast Asian martial arts federations. The FKBSC plays a key role in establishing unified rules for international competition under the Kun Khmer banner.
Cambodia NOC
National Olympic Committee of Cambodia
The NOC oversees Kun Khmer's inclusion in multi-sport events such as the SEA Games, where the sport has been featured as a medal discipline. The committee coordinates the selection of national team fighters and ensures that Cambodian athletes compete under standardized international rules at regional and global sporting events.
Ring Specifications
Standard Competition Ring
- Ring size: 6.1m x 6.1m (20ft x 20ft) to 7.3m x 7.3m (24ft x 24ft) inside the ropes
- Platform height: 91cm to 122cm (3ft to 4ft) above the ground
- Ropes: Four ropes, 3cm to 5cm in diameter, at heights of 41cm, 71cm, 102cm, and 132cm
- Padding: Canvas-covered padding at least 3.8cm (1.5in) thick covering the entire ring floor
- Corner pads: Protective padding on all four corner posts, extending to the top rope
Corner Designations
- Red Corner: Typically the visiting fighter or the fighter listed second on the card
- Blue Corner: Typically the home fighter or the fighter listed first on the card
- Neutral Corners: Two white/neutral corners where fighters are directed during knockdown counts
Traditional Cambodian venues often feature live musicians playing the Vong Phleng Kun Khmer (traditional fight orchestra) adjacent to the ring, with instruments including the sralai (oboe), sampho (drum), and chhing (finger cymbals).
Weight Classes
| Division | Weight (kg) | Weight (lb) |
|---|---|---|
| Mini Flyweight / Atomweight | 47.6 kg | 105 lb |
| Light Flyweight | 49.0 kg | 108 lb |
| Flyweight | 50.8 kg | 112 lb |
| Super Flyweight | 52.2 kg | 115 lb |
| Bantamweight | 53.5 kg | 118 lb |
| Super Bantamweight | 55.3 kg | 122 lb |
| Featherweight | 57.2 kg | 126 lb |
| Super Featherweight | 59.0 kg | 130 lb |
| Lightweight | 61.2 kg | 135 lb |
| Super Lightweight | 63.5 kg | 140 lb |
| Welterweight | 66.7 kg | 147 lb |
| Super Welterweight | 69.9 kg | 154 lb |
| Middleweight | 72.6 kg | 160 lb |
| Super Middleweight | 76.2 kg | 168 lb |
| Light Heavyweight | 79.4 kg | 175 lb |
| Cruiserweight | 86.2 kg | 190 lb |
| Heavyweight | 95.3 kg | 210 lb |
| Super Heavyweight | 95.3+ kg | 210+ lb |
Weigh-ins typically occur the morning of the fight for domestic Cambodian events. For international competitions and ONE Championship bouts, weigh-ins may be conducted the day before with hydration tests.
Round Structure
Professional Bouts
- Rounds: 5 rounds
- Round duration: 3 minutes per round
- Rest period: 2 minutes between rounds
- Total fight time: 15 minutes of action, 8 minutes rest
- Championship bouts: Always 5 rounds; no extension rounds
The first two rounds typically involve feeling out and building rhythm. Rounds 3 and 4 are considered the championship rounds where judges expect decisive action. Round 5 is critical for close fights.
Amateur Bouts
- Rounds: 3 rounds
- Round duration: 2 minutes per round (juniors) or 3 minutes (senior amateur)
- Rest period: 1 minute between rounds
- Total fight time: 6-9 minutes of action
- SEA Games format: 3 rounds x 3 minutes with 1-minute rest
Amateur bouts at the SEA Games and national championships may use electronic scoring systems or a panel of five judges. Elbow strikes may be restricted in junior amateur divisions depending on the sanctioning body.
Legal Techniques
Punches (Dar)
Jab, cross, hook, uppercut, and all standard punches delivered with the knuckle area of a closed fist
Kicks (Kat / Tep)
Roundhouse kicks, push kicks (teep), side kicks, axe kicks, and all kicks delivered with the shin or foot
Knee strikes (Bok Chong)
Straight knees, diagonal knees, curving knees, flying knees, and knee strikes from the clinch or at range
Elbow strikes (Bat Koun)
Horizontal elbows, diagonal elbows, uppercut elbows, spinning elbows, downward elbows (sok tee), and slashing elbows
Clinch work (Chap Kor)
Neck wrestling, single collar tie, double collar tie, body lock, and all clinch positions for delivering knees and elbows
Sweeps (Boh Joeung)
Foot sweeps, inside leg trips, and balance-disrupting techniques executed while both fighters are standing
Throws from clinch
Hip throws and dumps from the clinch position are permitted, provided the thrower does not follow the opponent to the ground
Catch and counter
Catching an opponent's kick and delivering a counter strike or sweep is permitted
The art of eight limbs: Kun Khmer permits the use of fists, elbows, knees, shins, and feet — making it one of the most comprehensive striking arts in the world. The emphasis on elbow and knee strikes, combined with the clinch, distinguishes Kun Khmer from Western boxing and kickboxing. Fighters are expected to demonstrate proficiency across all weapons, and the most highly regarded champions are those who can seamlessly transition between ranges.
Illegal Techniques & Fouls
Headbutts of any kind
Biting or spitting at the opponent
Eye gouging or fish-hooking
Groin strikes (intentional)
Strikes to the back of the head or spine
Strikes to the throat with an open hand or fingers
Small joint manipulation (fingers, toes)
Takedowns with the intent to follow to the ground
Ground fighting or ground-and-pound
Holding the ropes for leverage during strikes or clinch
Attacking an opponent who is down, falling, or rising
Turning the back to the opponent to avoid fighting
Unsportsmanlike conduct, including insulting gestures
Applying any oil, grease, or substance to the body
Use of knees or elbows to a downed opponent
Foul Penalties
The referee may issue a warning for the first offence, deduct one point for a second offence, deduct two points for a third offence, and disqualify the fighter for a fourth offence or for any single flagrant foul. Intentional fouls that cause injury may result in immediate disqualification regardless of how many warnings have been issued. The deducted points are reflected on the scorecards of all judges at the end of the round in which the foul occurred.
Scoring System
10-Point Must System
Kun Khmer uses the 10-point must system, identical to boxing and Muay Thai scoring. The winner of each round receives 10 points, and the loser receives 9 or fewer. A round with a clear winner is scored 10-9. A round with a knockdown is typically scored 10-8. Two knockdowns in a round may result in a 10-7 score. An even round is scored 10-10, but judges are encouraged to find a winner wherever possible.
Judging Criteria (Priority Order)
Clean strikes
Punches, kicks, knees, and elbows that land cleanly on legal target areas with visible effect
Effective aggression
Moving forward with purposeful striking, not reckless swinging or clinch-stalling
Clinch dominance
Controlling position in the clinch, landing effective knees and elbows, executing sweeps and dumps
Ring generalship
Controlling the pace and geography of the fight, cutting off the ring, dictating range
Defense
Effective blocking, parrying, and evasion that denies the opponent scoring opportunities
Damage
Visible physical effect of strikes, including staggering, cutting, or hurting the opponent
Decision Types
Knockout (KO)
Fighter is knocked down and unable to rise before the count of 10
Technical Knockout (TKO)
Referee stops the fight due to a fighter's inability to continue, corner stoppage, or doctor stoppage
Unanimous Decision (UD)
All three judges score the fight for the same fighter
Split Decision (SD)
Two judges score for one fighter, one judge scores for the other
Majority Decision (MD)
Two judges score for one fighter, one judge scores it a draw
Draw
Majority of judges score the fight even (rare in Kun Khmer)
Knockdown Rules
When a fighter is knocked down, the referee begins a mandatory 8-count. The fighter must rise and demonstrate the ability to continue before the count reaches 10. Even if the fighter rises immediately, the referee will count to 8 as a standing 8-count before allowing action to resume.
Three-knockdown rule (per round): If a fighter is knocked down three times in a single round, the fight is stopped and ruled a TKO regardless of the fighter's apparent condition.
Cumulative knockdowns: Some sanctioning bodies apply a four-knockdown rule across the entire fight. After the fourth knockdown in a bout, the fight is stopped.
Simultaneous knockdown: If both fighters are knocked down simultaneously, the count continues for both. If neither can rise by 10, the fight is ruled a technical draw or the fighter who was ahead on the scorecards at that point wins.
Saved by the bell: In most Kun Khmer promotions, a fighter cannot be saved by the bell in any round, including the final round. If a knockdown occurs as the bell sounds, the count continues.
Equipment Requirements
Professional Equipment
- Gloves: 6 oz (under 54 kg), 8 oz (54-67 kg), 10 oz (over 67 kg)
- Hand wraps: Soft gauze and athletic tape, maximum 2.5m per hand
- Mouthguard: Custom-fitted, mandatory for all fighters
- Groin protector: Steel cup or approved hard protector, mandatory for male fighters
- Trunks: Traditional Kun Khmer shorts (typically satin, red or blue to match corner)
- Krueng (armband): Traditional sacred armband, may be worn during the Twai Kru and sometimes during the fight
- Mongkol: Traditional headband worn during the Twai Kru ceremony, removed before fighting begins
Amateur Equipment
- Gloves: 10 oz for all weight classes (larger for added protection)
- Headgear: Approved competition headgear, mandatory for all amateur fighters
- Shin guards: Approved competition shin guards, mandatory for junior divisions
- Elbow pads: Required in some junior amateur divisions to reduce cuts
- Body protector: Optional chest protector for female amateur fighters
- Mouthguard & groin protector: Same requirements as professional
ONE Championship Kun Khmer Rules
ONE Championship has featured Kun Khmer as a distinct discipline alongside Muay Thai, kickboxing, and MMA, giving the Cambodian art unprecedented international exposure. ONE's Kun Khmer rules largely follow traditional competition standards with several notable modifications.
Key Differences from Standard Rules
- -3 rounds x 3 minutes (instead of 5 rounds for standard pro)
- -4 oz open-finger gloves (ONE's standard glove across all striking disciplines)
- -Hydration-based weight management (no traditional weight cutting allowed)
- -Unified global rules applied consistently across all ONE events
ONE Weight Classes for Kun Khmer
- Atomweight: up to 52.2 kg (115 lb)
- Strawweight: up to 56.7 kg (125 lb)
- Flyweight: up to 61.2 kg (135 lb)
- Bantamweight: up to 65.8 kg (145 lb)
- Featherweight: up to 70.3 kg (155 lb)
- Lightweight: up to 77.1 kg (170 lb)
- Welterweight: up to 83.9 kg (185 lb)
Rule Comparison: Kun Khmer vs Muay Thai vs Lethwei
| Aspect | Kun Khmer | Muay Thai | Lethwei |
|---|---|---|---|
| Elbows | Fully allowed, all types | Fully allowed, all types | Fully allowed, all types |
| Headbutts | Not allowed | Not allowed | Fully allowed |
| Clinch time | Liberal, limited breaks | Moderate, referee breaks | Liberal, limited breaks |
| Rounds (Pro) | 5 x 3 minutes | 5 x 3 minutes | 5 x 3 minutes |
| Glove size | 6-10 oz | 6-10 oz | No gloves (wraps only) |
| Scoring | 10-point must | 10-point must | No judges; draw if no KO |
| Throws | Clinch throws allowed | Clinch throws allowed | Clinch throws allowed |
| Wai Kru | Yes (Twai Kru) | Yes (Wai Kru Ram Muay) | Yes (Let Kha Moun) |
| Music | Vong Phleng Kun Khmer | Sarama | Sidaw music |
| Ring | Standard boxing ring | Standard boxing ring | Standard boxing ring |
| Sweeps | Allowed | Allowed | Allowed |
| Knockdown count | 8-count, 3 per round | 8-count, 3 per fight | No standing count |
While Kun Khmer and Muay Thai share many similarities due to their common Southeast Asian roots, Kun Khmer places a distinctly heavier emphasis on elbow strikes and clinch work. Lethwei, Myanmar's traditional boxing, is the most extreme of the three, permitting headbutts and traditionally using no gloves. All three arts share the ritual pre-fight dance, live musical accompaniment, and deep cultural significance within their respective countries.