Courting glory: How to win big at Australian Open 2025 The Australian Open is one of the world’s biggest tennis events, held annually at the Tennis Centre in Melbourne, Victoria, Australia. As the first of four annual Grand Slam events, it kicks off the tennis season followed by Roland-Garros, Wimbledon, and the US Open. Get ready for the Australia Open 2025 place your bets on the action here at Gamdom.