Resolution criteria

This market resolves YES if Jannik Sinner wins at least 2 Grand Slam titles in 2026. Resolution will be determined by official results from the four Grand Slam tournaments: Australian Open (January), French Open (May-June), Wimbledon (June-July), and US Open (August-September). Check results at ATP Tour or the official websites of each Grand Slam.

Background

Sinner won two Grand Slam titles in 2025 despite serving a three-month suspension early in the season, capturing the Australian Open and Wimbledon. He is the defending Australian Open champion and will look to become just the second man in the Open Era — after Novak Djokovic — to win three straight Australian Open titles. As a four-time Grand Slam champion, Sinner will look to complete the Career Grand Slam at Roland Garros, the only major he has not won. According to Italian tennis legend Adriano Panatta, Sinner has a secret goal to achieve the Grand Slam, and as a type of player, Sinner has more chances than Carlos Alcaraz to achieve this feat by being more consistent and regular.

Considerations

Sinner and Alcaraz have won all eight Grand Slam finals since the beginning of 2024, indicating the dominance of these two players. Sinner's main competition will likely come from Alcaraz, who finished 2025 ranked world No. 1. Winning two Grand Slams in a single year is a significant achievement, though Sinner has already demonstrated the ability to do so in 2025.