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.

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Cast

Regian Eersel

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Sitthichai Sitsongpeenong

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Asa Ten Pow

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Paul Elliott

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Jihin Radzuan

Self