The ONE Championship is a well-known Singaporean combat sports promotion established on July 14, 2011. It includes mixed martial arts (MMA) fights, submission grappling, kickboxing, Muay Thai, and Lethwei. Aside from that, ONE Championship has hosted over 100 events in which participants are classified into weight classes.
This article will go through the various weight classes in the ONE Championship. It will go through ONE’s MMA, submission grappling, kickboxing, Muay Thai, and Lethwei weight categories. Stay tuned!
What Are the ONE Championship Weight Classes?

The ONE Championship is a Singaporean combat sports promotion launched on July 14, 2011, by Chatri Sityodtong and Victor Cui. And it is becoming more popular as MMA, grappling, and other fighting sports gain popularity. As a result, more athletes are joining the ONE Championship.
The ONE Championship offers multiple weight classes for its various competing disciplines. For example, there are ten weight categories in MMA, six in kickboxing, and five in Muay Thai.
The Singapore-based campaign has implemented a unique program that limits harsh weight-loss regimens. Thus, fighters contracted to ONE Championship must compete at their walking weight, which is decided by various weigh-ins and testing.
The following are ONE Championship weight classes in MMA, submission grappling, kickboxing, and Muay Thai.
ONE Championship MMA Weight Classes
The ONE Championship has ten MMA weight classes.
ONE Championship MMA weight class | Weight limit in kilograms | Weight limit in pounds |
---|---|---|
Atomweight | 47.7 to 52.2 kg | 105.1 to 115 lbs |
Strawweight | 52.3 to 56.7 kg | 115.3 to 125 lbs |
Flyweight | 56.8 to 61.2 kg | 125.2 to 135 lbs |
Bantamweight | 61.3 to 65.8 kg | 153.1 to 145 lbs |
Featherweight | 65.9 to 70.3 kg | 145.3 to 155 lbs |
Lightweight: | 70.4 to 77.1 kg | 155.2 to 170 lbs |
Welterweight: | 77.2 to 83.9 kg | 170.2 to 185 lbs |
Middleweight | 84.0 to 93.0 kg | 185.2 to 205 lbs |
Light heavyweight | 93.1 to 102.1 kg | 205.2 to 225 lbs |
Heavyweight | 102.2 to 120.2 kg | 225.3 to 265 lbs |
Male MMA Fighters Weight Divisions
The ONE Championship has nine weight classes for its male MMA contestants.
Male ONE Championship MMA weight class | Weight limit in kilograms | Weight limit in pounds |
---|---|---|
Strawweight | 52.3 to 56.7 kg | 115.3 to 125 lbs |
Flyweight | 56.8 to 61.2 kg | 125.2 to 135 lbs |
Bantamweight | 61.3 to 65.8 kg | 153.1 to 145 lbs |
Featherweight | 65.9 to 70.3 kg | 145.3 to 155 lbs |
Lightweight: | 70.4 to 77.1 kg | 155.2 to 170 lbs |
Welterweight: | 77.2 to 83.9 kg | 170.2 to 185 lbs |
Middleweight | 84.0 to 93.0 kg | 185.2 to 205 lbs |
Light heavyweight | 93.1 to 102.1 kg | 205.2 to 225 lbs |
Heavyweight | 102.2 to 120.2 kg | 225.3 to 265 lbs |
Female MMA Fighters Weight Divisions
The ONE Championship has five weight classes for its male MMA contestants.
Female ONE MMA weight class | Weight limit in kilograms | Weight limit in pounds |
---|---|---|
Atomweight | 47.7 to 52.2 kg | 105.1 to 115 lbs |
Strawweight | 52.3 to 56.7 kg | 115.3 to 125 lbs |
Flyweight | 56.8 to 61.2 kg | 125.2 to 135 lbs |
Bantamweight | 61.3 to 65.8 kg | 153.1 to 145 lbs |
Featherweight | 65.9 to 70.3 kg | 145.3 to 155 lbs |
ONE Championship Muay Thai Weight Divisions
Source: ONE Championship
The ONE Championship has five Muay Thai weight classes for males contestants and two for females, as mentioned below:
Males Muay Thai One Championship Weight Categories
ONE Championship Males Muay Thai weight classes | Weight limit in pounds | Weight limit in pounds |
---|---|---|
Lightweight | 170 lbs | 77.1 kg |
Featherweight | 155 lbs | 70.3 kg |
Bantamweight | 145 lbs | 65.8 kg |
Flyweight | 135 lbs | 61.2 kg |
Strawweight | 125 lbs | 56.7 kg |
Females Muay Thai ONE Championship Weight Categories
ONE Championship female Muay Thai Weight classes | Weight limit in pounds | Weight limit in kilograms |
---|---|---|
Atomweight | 115 lbs | 52.2 kg |
Strawweight | 125 lbs | 56.7 kg |
ONE Championship Kickboxing Weight Classes
Source: ONE Championship
The ONE Championship has six kickboxing weight classes for its male contestants and just one for females, as mentioned below:
Male ONE Championship Kickboxing Weight Classes
Male ONE Championship kickboxing Weight class | Weight limit in pounds | Weight limit in kilograms |
---|---|---|
Strawweight | 125 lbs | 56.7 kg |
Flyweight | 135 lbs | 61.2 kg |
Bantamweight | 145 lbs | 65.8 kg |
Featherweight | 155 lbs | 70.3 kg |
Lightweight | 170 lbs | 77.1 kg |
Light Heavyweight | 225 lbs | 102.1 kg |
Female ONE Championship Kickboxing Weight Classes
Female ONE Championship kickboxing weight class | Weight limit in pounds | Weight limit in kilograms |
---|---|---|
Atomweight | 115 lbs | 52.2 kg |
ONE Championship Submission Grappling Weight Classes
Submission grappling is another popular combat sport that has a place in the ONE championship events. The Singapore-based promotion has only two weight classes for male grapplers.
Female ONE Championship submissions grappling Weight class | Weight limit in pounds | Weight limit in kilograms |
---|---|---|
Strawweight | 125 lbs | 56.7 kg |
Atomweight | 115 lbs | 52.2 kg |
Conclusion
The ONE Championship is a popular Singaporean combat sports promotion founded on July 14, 2011, by Chatri Sityodtong and Victor Cui. It has become one the best fight events organizing bodies, with over 100 events held.
The Singaporean promotion organizes MMA matches, submission grappling, kickboxing, Muay Thai, and Lethwei. Indeed, as discussed above, it has limited weight classes for its athletes.
We hope this essay has helped you understand various ONE Championship weight divisions.
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