Lumpinee Boxing Stadium is a sporting arena in Bangkok, Thailand. Opened more than a decade later than Rajadamnern Stadium, Lumpinee is run by the Royal Thai Army. It has become the symbol of modern Muay Thai. Only Rajadamnern Stadium rivals the prestige of holding the title of "Muay Thai Champion of Lumpinee". The ranking system and championship titles are held from mini flyweight (105 lb) up to super welterweight (154 lb).

Rajadamnern Stadium, also spelled Ratchadamnoen, is a sporting arena in Bangkok, Thailand. Along with Lumpinee Boxing Stadium, Rajadamnern is one of the two main stadiums for modern muay Thai. It hosts fights every Monday, Wednesday, Thursday and Sunday. The stadium has its own ranking system and championship titles up to middleweight (160 lbs).