WEIGHT CLASSES
All 11 Lethwei divisions — flyweight through openweight.
Lethwei was originally an openweight art. The codified divisions you see today were introduced in the 20th century, primarily through Kyar Ba Nyein's reforms after he returned from the 1952 Helsinki Olympics. Below: every sanctioned weight, the styles that thrive there, and the fighters who define each class.
Flyweight
The smallest sanctioned division. Speed, accuracy, and footwork dominate at this weight; one-shot knockout power is rare, so flyweight bouts are usually decided by accumulated damage rather than single moments.
→ Has historically been the deepest division in Myanmar's regional sandpit circuits but has only seen limited international promotion.
Bantamweight
Where technical pressure fighters often emerge. The 6-pound jump from flyweight increases knockout potential measurably, and the bantamweight clinch game is among the most refined in the sport.
→ Souris Manfredi headlined the WLC women's strawweight/bantamweight divisions and changed how the women's game is perceived.
Featherweight
The marquee weight for technical Myanmar fighters. At this weight, southpaw counter-strikers have historically dominated because the speed differential makes timing-based finishes possible in ways the heavier classes don't allow.
→ Soe Lin Oo and Ye Thway Ni have defined the modern WLC featherweight game.
Lightweight
The crowd-pleaser division. The combination of speed, power, and durability at lightweight produces the most consistently watchable bouts on a typical card. Clinch knees become genuinely dangerous; headbutts gain real stopping power.
→ Too Too's lightweight reign in the 2000s defined sandpit-era violence; Lone Chaw's modern lightweight title carries the Karen technical lineage forward.
Welterweight
The international crossroads. Most foreign fighters who arrive in Myanmar walk around at welterweight or middleweight, so this is the division where the most cross-cultural bouts have happened. Kyar Ba Nyein himself fought welterweight at the 1952 Helsinki Olympics.
→ Cyrus Washington and Antonio Faria built international careers in this division.
Middleweight
The first weight at which one clean strike can end a fight regardless of technical execution. Saw Gyi-style headbutt finishes are most common in this range — the mass behind a frontal headbutt at 160 pounds is genuinely concussive.
→ Saw Gyi (sandpit), Artur Saladiak (WLC) and Phyan Thwei (modern Myanmar) define this division across eras.
Light Heavyweight
A tier where Myanmar fighters historically thinned out and international fighters became more common. The balance shifts toward conditioning at this weight — fighters who can maintain pressure across all rounds tend to defeat better technicians who cannot.
→ Eh Moo's modern Karen-style game has been the headline at this weight in recent WLC cards.
Cruiserweight
The WLC-specific division between light heavy and openweight. Created to give Dave Leduc and similar-sized international fighters a sanctioned platform that didn't require giving up size to Myanmar openweights.
→ Dave Leduc's WLC Cruiserweight title is the highest-profile international Lethwei championship of the modern era.
Heavyweight
Rare in Lethwei. Most Myanmar fighters never reach this weight, and the division exists primarily for international invitational matchups. Bouts at this weight are short and decisive — there is little technical filigree once both fighters have 200+ pounds of body mass behind their strikes.
→ Few sanctioned bouts; mostly exhibition or special-rules cards.
Openweight
The most prestigious and historically significant Lethwei division. The Openweight Golden Belt is considered pound-for-pound supreme and has been contested between fighters with significant size differentials throughout the sport's history. Old-school Lethwei was always openweight by default — the codified divisions are a 20th-century addition.
→ Tun Tun Min and Dave Leduc fought their trilogy at openweight; the Golden Belt itself is openweight in its highest form.