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.
Sloane Betker
Fresh from Europe, Sampson takes the Challenge with Curraghgraigue Obos Flight; Chernoff is MarBill Hill U25 champion and Betker bests Derby.
The pair finished just a half-point ahead of runners-up Ashley Arnold and Light My Fire, with Sloane Betker and Crack third.
The 10th grader bested a group of professionals aboard her longtime partner, Kensington, at the Langley venue.
The bursary supports jumping’s next generation striving to continue their education while competing at high levels of the sport.
The youngest rider in the competition proved the best in the medal class run under a new format just recently added to the Royal West lineup.
