The 16-year-old, who has just completed her GCSEs, dropped just two marks on the Low North Park route one course, eclipsing even Becky Cook, who won her fourth British Ladies Championship event of the season with a score of just seven.

Only a drop -off ledge, which involved a large rock with a ‘clayish’ approach, caught Joanne out on lap two, although she had cleaned the same element on lap one and was only one of three riders, including Cook, to do so.

But those two marks only served to fire Joanne to greater heights, and she cleaned it again on lap three.

Not only that, she reportedly ‘stormed’ the slippery narrow stepped stream bed which had seen others come to grief.

The result put her 49 points clear of her nearest Girls A Class rival and fellow Sherco rider, Stoney Middleton’s Hannah Styles.

Like most competitors Hannah also struggled with the section that had cost Joanne her two marks, and she and third-placed Harriet Peacock lost the battle with the following Twin Forks section too.

The win was Joanne’s fifth out of all five rounds in the championship this year, and she leads the overall A Class standings with 100 points.

The championship now moves to Torridge, in Devon, for the penultimate round on August 3.