Austin was the first overall pick in the 2018 NLL draft and was the 2018-19 NLL Rookie of the year. He won 3 Minto Cups with the Six Nations Arrows during his Jr A career. He also won a Mann Cup in 2016 as an underage call up for the Six Nations Chiefs. He was a member of Team Iroquois at the 2015 Box World Championship and the 2018 World Field Lacrosse Championships in Israel, where he was named to the All-World Team as an Attackman.