Mitch played for Nelson College then played for NZ Under 20's and Auckland in 2015. He moved home to represent the Mako from 2016, and has made the first-five position his own and is the team's main goal kicker. Mitch ran the cutter in the victorious 2019 and 2020 Mitre 10 Cup Premiership campaigns. A Crusaders from 2016, he played for the Highlanders in the 2020 and 2021 Super Rugby Aotearoa seasons. In 2021 Mitch will be co-captain of the Tasman Mako alongside Quinten Strange.