Five years ago, Mia Trevorrow walked into a kickboxing gym in St Ives, Cornwall, for the first time. On Friday night in Bangkok, she walked out of Lumpinee Stadium as a ONE Championship winner.
The ISKA British Champion and WBC World number seven-ranked kickboxer made an immediate statement on her ONE Championship debut, defeating Japan’s Kokoz by unanimous decision in a women’s atomweight Muay Thai bout at The Inner Circle on May 15. The result improves her record to 12-5 and takes her one step closer to her stated goal of becoming the first British woman to claim ONE World Title gold.

Trevorrow came out of the corner fast, throwing clean punches behind an active guard before uncorking a right elbow that put Kokoz on the canvas for an early eight-count. The knockdown shifted the momentum. Rather than discourage the Japanese veteran, it ignited her, and Kokoz came back with heavy right hands over the top to make the first round a genuine contest.
The second belonged to Kokoz. The Try Hard Gym fighter found her rhythm and her range, popping in and out with ripping body shots that raised welts on Trevorrow’s midsection before going upstairs to shake her jaw. The Masda Gym Liverpool product absorbed it and stayed composed. It was the kind of composure that is difficult to manufacture and usually built on years of hard, unglamorous work.

Trevorrow had plenty of that. Her kickboxing journey has been rapid by any measure, pushing through the domestic ranks at a pace that took her from her first competitive bout to a British title and an international ranking inside five years. The step up to ONE Championship is the logical destination of that climb, and she earned it on Friday in the most straightforward way available: by winning.
The final round saw both women meet in the centre and trade freely. Kokoz landed the cleaner shots and controlled the clinch when the distance closed, but it was not enough to overturn Trevorrow’s early work. All three judges sided with the Briton.
A winning debut at Lumpinee Stadium opens every door for what comes next.
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