With the Australian Open main draw set, Jannik Sinner and Aryna Sabalenka will enter the tournament as overwhelming betting favorites to win their respective brackets and add a fifth Grand Slam title to their respective résumés.
Sinner is a -120 favorite to three-peat at the tournament, according to DraftKings lines, the first men’s player to be odds-on at a Grand Slam since Novak Djokovic also sported -120 going into the 2023 Australian Open, which he eventually won. It’s the first time in Sinner’s career that he’ll be the odds-on favorite heading into a Grand Slam.
Carlos Alcaraz, the men’s bracket No. 1 seed, is at +175, the only player anywhere close to Sinner. Djokovic comes in next at +1600 before another big jump to Daniil Medvedev (+2500) and Alexander Zverev (+3500). In DraftKings’ special Big Two vs. the Field market, Sinner and Alcaraz are -1100 to win the tournament. The field is +550.
Perhaps unsurprisingly, bettors are fully expecting one of the Big Two to take the title in Melbourne. At FanDuel and theScore Bet, Sinner and Alcaraz have garnered a combined 88% of the handle, with Alcaraz taking more than Sinner at the latter book.
Djokovic, Medvedev and Zverev, as well as Americans Taylor Fritz (+6000) and Ben Shelton (+7000), have attracted a fair share of long-shot ticket action across the sportsbook marketplace.
On the women’s side, Sabalenka — the Australian Open champion in 2023 and 2024 — is a +185 favorite to reclaim the title, per DraftKings odds. There’s a sizable drop-off to Iga Swiatek at +550 before Amanda Anisimova (+750), Elena Rybakina (+800) and Coco Gauff (+1000) round out the top five. Gauff’s odds lengthened from +700 on Friday morning.
Sabalenka’s odds are shorter than they were going into 2025 (+225), when she eventually lost via an upset by Madison Keys in the final. Keys is +3000 to repeat.
With more of an open draw than on the men’s side, there is more variability in the betting action. Though Sabalenka largely leads the wager and money splits, BetMGM, FanDuel and theScore Bet report taking significant action on Anisimova, while DraftKings has seen notable engagement on Rybakina.
BetMGM also likely took at least one large wager on Jessica Pegula, as she holds a leading 19.3% of the handle at the sportsbook to be its largest liability. Her odds have moved from +3300 to +2200 at BetMGM.
