Highlights from the event included a sibling rivalry between Dean and Dylan Moriarity and the snowmobiles racing down the course between rounds .
Dylan Moriarity is a thrilling comeback in the quaterfinals by Naasz from third place late in the race .
Highlights from the event included a sibling rivalry between Dean and Dylan Moriarity , a thrilling comeback in the quaterfinals by Naasz from third place late in the race , and the snowmobiles racing down the course between rounds .