AFL Premiership 2020 Betting Odds Latest betting odds and markets for the 2020 AFL Premiership. Who will win the flag and become premiers? Reigning premiers Richmond are favourites to win the 2020 AFL Premiership. The Tigers smashed the GWS Giants by 89 points in the 2019 AFL Grand Final. They also won the 2017 premiership over the Adelaide Crows. Richmond are $4.25 favourites to win the AFL premiership in 2020.