Regian Eersel

ONE Friday Fights 173: Tonglampoon vs. Tobias was a combat sports event produced by ONE Championship that took place on October 2, 2026, at Lumpinee Boxing Stadium in Bangkok, Thailand. A strawweight Muay Thai bout between Tonglampoon FA.Group and Dionatha Santos Tobias headlined the event.

ONE Fight Night 11: Eersel vs. Menshikov was a combat sports event that took place on Friday, June 9, 2023 at the Lumpinee Boxing Stadium in Bangkok, Thailand.

ONE Friday Fights 150: Kompetch vs. Attachai was a combat sports event produced by ONE Championship that took place on April 10, 2026, at Lumpinee Boxing Stadium in Bangkok, Thailand. A strawweight Muay Thai bout between Kompetch Fairtex and Attachai Kelasport headlined the event.

ONE Championship ONE 156 was a MMA event featuring 15 bouts, held at the Singapore Indoor Stadium, Singapore.

ONE Fight Night 25: Nicolas vs. Eersel 2 was a combat sport event produced by ONE Championship that took place on October 5, 2024, at Lumpinee Boxing Stadium in Bangkok, Thailand. A ONE Lightweight Kickboxing World Championship rematch between current champion Alexis Nicolas and former champion (also current ONE Lightweight Muay Thai World Champion) Regian Eersel headlined the event. They previously met at ONE Fight Night 21 in April 2024, where Nicolas won the title by unanimous decision.

ONE Friday Fights 9: Eersel vs. Sinsamut 2 was a combat sports event produced by ONE Championship that took place on March 17, 2023, at Lumpinee Boxing Stadium in Bangkok, Thailand.

ONE Fight Night 21: Eersel vs. Nicolas was a combat sport event produced by ONE Championship that took place on April 6, 2024, at Lumpinee Boxing Stadium in Bangkok, Thailand. A ONE Lightweight Kickboxing World Championship bout between current champion (also current ONE Lightweight Muay Thai World Champion) Regian Eersel and Alexis Nicolas headlined the event.

ONE Fight Night 30: Kryklia vs. Knowles was a combat sports event produced by ONE Championship that took place on April 5, 2025, at Lumpinee Boxing Stadium in Bangkok, Thailand. A ONE Heavyweight Muay Thai World Championship bout between current champion (also current ONE Light Heavyweight Kickboxing World champion) Roman Kryklia and promotional newcomer Lyndon Knowles headlined the event.