Bethany Carter won the Barnet mini-marathon trials at Copthall.
The St Martha's Senior School, Hadley Wood, pupil will now compete for the borough in the London Mini-Marathon on Sunday, April 17.
At Copthall, Bethany saw off about 40 girls to triumph. She will be competing in the U15 event in London, but beat some girls older than herself in the recent Barnet race.
It will be her fourth London mini-marathon.
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