Sailing from , Marius Saunders competes in the the region dinghy circuit. Since February 2022, 7 races across 5 regattas have been recorded for Marius. Marius competes mainly in the Miura fleet, alongside races in other fleets. Marius's best results include winning the SailingSA events in the multiple fleets fleet, as well as the SailingSA events in the multiple fleets fleet. Marius remains active in regional dinghy racing.