 Having completed his senior year with Duluth East, Toninato closed out the season with the Fargo Force in the United States Hockey League, having been previously drafted by the club at the 2011 USHL Entry Draft.In gaining attention from the professional ranks as a two-way player, Toninato in his first year of eligibility was the first Minnesota prep school player drafted in the 2012 NHL Entry Draft, selected in the fifth round (126th overall) by the Toronto Maple Leafs.Toninato returned to continue his development with Fargo of the USHL for the 2012–13 season.