Origins and construction (1941-1945)
Plans for a national boxing stadium on Bangkok's Ratchadamnoen Avenue date to 1941, when the government of Prime Minister Field Marshal Plaek Phibunsongkhram sought to establish a permanent home for professional Muay Thai. The foundation stone was laid on 1 March 1941, and the construction contract, valued at roughly 258,900 baht, was awarded to the firm Imprese Italiane All'Estero-Oriente. Material shortages during World War II halted progress, and work did not resume in earnest until August 1945, after which the venue was completed in a matter of months. The stadium opened with its first card on 23 December 1945, making it the world's first purpose-built Muay Thai stadium. The original structure was open-air, with a tiered, amphitheatre-like seating bowl arranged around a central ring. Pramote Puengsoonthorn served as the first stadium manager, holding the post until 1947. A concrete roof was added in 1951, converting the venue into an all-weather arena.
Institutionalization and the formation of Rajadamnern Co., Ltd. (1945-1960s)
In its early years the stadium was government-administered and reportedly operated at a loss. On 24 May 1953 manager Chalerm Cheosakul formed Rajadamnern Co., Ltd. and obtained permission from the Crown Property Bureau to run the venue commercially; the company has operated the stadium ever since. During this period Rajadamnern became a central authority in codifying the modern sport, helping to standardize professional rules, weight classes, championship belts in place of the older award traditions, and a ranking system for ranked title contention. Alongside Lumpinee Boxing Stadium, which opened in 1956, it became one of the two most prestigious championship venues in Thailand, and a Rajadamnern title came to be regarded as one of the highest honors a fighter could attain.
The golden age (1980s-1990s)
From the late 1970s through the 1990s, Rajadamnern shared with Lumpinee the so-called golden age of Muay Thai, an era marked by deep talent, large live gates, and intense stadium gambling that shaped match-making and scoring conventions. Champions crowned or campaigned at Rajadamnern during this period are widely cited among the greatest in the sport's history, including Samart Payakaroon, Dieselnoi Chor Thanasukarn, and Samransak Muangsurin. The stadium's titles, contested across the traditional Thai weight classes, were the benchmark by which elite fighters were measured. Throughout the late twentieth century Rajadamnern operated on a traditional model: regularly scheduled fight cards, scoring by the established Thai criteria, and a male-only competitive program. Cards were broadcast on Thai television and the venue remained a fixture of Bangkok's sporting and tourist landscape.
Modernization and the Rajadamnern World Series (2022-present)
In 2022 Global Sport Ventures Co., Ltd. (GSV), an affiliate of the listed media company Plan B Media PCL, invested in Rajadamnern Stadium Co., Ltd. and launched a modernized promotion, the Rajadamnern World Series (RWS). RWS introduced changes aimed at international audiences, including an open (transparent) scoring system, upgraded broadcast production, and a regular weekend event format, while retaining the stadium as the competitive home. The same year marked the first sanctioned female Muay Thai bouts in the stadium's history, ending a male-only tradition that had stood since 1945. Under the new ownership Rajadamnern expanded its global media distribution, including a streaming partnership with DAZN announced in 2023, and aligned more closely with international Muay Thai bodies such as the World Muaythai Council (WMC) and IFMA to broaden athlete pathways. In late 2024 the stadium marked its 80th anniversary, including immersive dome-projection presentations within the historic venue. RWS has featured many of the era's leading nak muay and positioned the Rajadamnern brand as a global hub for the sport while preserving its historic Bangkok arena.