The Australian Open 2025 broke its own attendance record, solidifying its position as the most-visited Grand Slam tournament. As the tournament’s popularity grows, so does tennis betting, with a massive shift toward in-play wagers. Betting data from Entain highlights key trends shaping the market.

  • Tennis betting continues to grow as the sport rises to become Entain’s fifth most popular globally, with key markets in the USA, Spain, Brazil, and the UK. The Australian Open’s increasing appeal contributes to this trend, though time zone challenges affect Western audiences.
  • Live betting dominates with about 90% of all tennis bets placed in-play, a rate unmatched by any other major sport. In-play markets focus on Match Betting, Game Winner, and Set Winner, which account for 85% of stakes.
  • Momentum swings drive engagement as bettors try to predict shifts in control during a match. These swings can be triggered by double faults, challenges, or psychological pressure, making in-play betting even more dynamic.
  • Grand Slam betting trends differ across markets. The US Open remains the most popular tournament for Entain due to a strong American customer base, while the French Open generates more bets than Wimbledon due to the longer duration of clay-court matches.
  • Men’s tennis attracts 60% of bets, partly due to the best-of-five format creating more opportunities for in-play betting. However, betting interest in women’s matches increased in the 2025 Australian Open due to a more competitive field.
  • Patriotic punting remains a factor, with American bettors favoring Coco Gauff, Jessica Pegula, Ben Shelton, and Taylor Fritz. Despite this, Madison Keys was lightly backed before winning her first Grand Slam title.
  • Emerging players attract attention, with Brazil’s Joao Fonseca gaining significant backing after his strong 2024 run. He upset ninth seed Andrey Rublev in the first round before exiting in the second.
  • Future of tennis betting expands, with Entain planning to introduce more in-play markets. The rise of Bet Builders in football and American football could soon make their way into tennis, offering new ways for bettors to engage.

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