Julie Atkinson, a Year 11 pupil at Canon Lee School, in York, starts her assault in the World Kick-boxing Championships in Prague tomorrow.
The 16-year-old earned her place by winning the gold medal at the British kick-boxing championships, held in Manchester in February.
Her first fight is tomorrow and if she wins through the finals take place on Sunday.
Teacher Keith Geary said: "The whole school is very proud of Julie and we are all wishing her luck in Prague."
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