Henshaw was in third place at the completion of the first run, and looked set for a podium finish until Oystein Braaten of Norway, on the very last run of the finals, scored an 86.40.
This was enough to relegate Henshaw to fourth, with a best score of 85.60.
The event was finally able to get underway after less than ideal conditions over the past few days, which resulted in postponements.
Competing in the Women’s Slopestyle World Cup event, seventeen year old NSWIS athlete Mahalah Mullins set a new personal best in finishing ninth.
Mullins has been training in Colorado as she continues her preparations ahead of next month’s Winter Youth Olympic Games in Lillehammer, and her ninth placing at Mammoth is an ideal tune-up.
In the men’s event, NSWIS athlete Angus Waddington finished in 31st place.
IMAGE: The slopestyle course @ Mammoth © Russ Henshaw Instagram