The 16-year-old made the top six in the final "jump off" phase where she received the highest marks to eke out a victory.

Fresh from Europe, Sampson takes the Challenge with Curraghgraigue Obos Flight; Chernoff is MarBill Hill U25 champion and Betker bests Derby.

The BC native topped a competitive field which took part in a new format for the event with a jump-off instead of the traditional ride-off.