A Naitanui Academy graduate from Mines Rovers in Kalgoorlie, Dewar kicked a goal on debut against Collingwood in 2024 and earned a Rising Star nomination in round 14 the following year after shifting from the forward line to a wing. The 185cm Category B rookie success story has signed a multi-year deal with the West Coast Eagles. He has played 23 AFL games and kicked 10 goals.