A 300 mile sled dog race to the Upper Susitna Valley. The Su Dog 300 is a non-profit 501c3 organization. All entry fees will go towards purchasing race materials (flagging, stakes, straw, support items for volunteers), reimbursing fuel for trail crews, and purchasing gift cards and prizes for the Closing Ceremonies. The Su Dog 300 is an Iditarod qualifier.

The start of the Inaugural Su Dog 300 is scheduled for Saturday, January 25th, 2025 At 2pm in Willow.