Toninato was selected as team captain for the Greyhounds in the 2011–12 season, and capped off a productive three-season career by helping the School to a fourth straight berth in the Minnesota State Class AA Tournament and delivered a 61 point season, amassing 27 goals and 34 assists in 25 outings to be selected as a Mr. Hockey Award finalist in addition to landing a spot on the All-State second team.
He added six points during a 13-game playoff run in which the Force advanced to the Clark Cup finals and was selected to the USHL's Second All-Star Team.
[6] In his junior season with the Bulldogs in 2015–16, Toninato saw a dip in his production, scoring 15 goals and 21 points in 40 games and suffered a second successive regional finals failure in a 3–2 defeat to Boston College.
Despite a contract offer in the off-season by the Maple Leafs to turn professional, Toninato passed to return for his senior year as captain with UMD.
He led the Bulldogs to their first-ever NCHC title and advanced to the NCAA Frozen Four Championship game before suffering a defeat to the University of Denver.
[13] After participating in his first rookie and main roster training camp with the Avalanche, Toninato was re-assigned to begin the 2017–18 season with AHL affiliate, the San Antonio Rampage on September 27, 2017.
[17] Centering a line between Sven Andrighetto and Nail Yakupov, Toninato made his NHL debut with the Avalanche in a 5–2 defeat to the Nashville Predators on November 18, 2017.