Will another player win a Calendar Grand Slam in 2026?

The market strongly favors that no player will win a Calendar Grand Slam in 2026.

Current market sentiment indicates a 100% probability against another player winning a Calendar Grand Slam in 2026. The Pulse AI also reflects a low probability of 1% for a YES outcome, suggesting a consensus on the difficulty of achieving this feat. With a confidence rating of 80/100, the market appears to be fairly priced.

• 1 Market probability shows a strong NO stance at 100%.
• 2 Pulse AI probability aligns closely with market at 99% for NO.
• 3 Confidence level of 80/100 indicates solid market stability.
• 4 Time to expiry is substantial, allowing for potential shifts in player performance.
• 5 Historical trends suggest winning a Calendar Grand Slam is extremely rare.

This is a market to predict who will win a women's tennis Calendar Grand Slam in 2026.

This market resolves to the single woman player who wins the Women's Singles titles at all four Grand Slam tournaments in 2026. The relevant 2026 Grand Slams are the Women's Singles tournaments in the 2026 Australian Open, French Open, U.S. Open, and Wimbledon.

For the purpose of this market, a tournament victory is valid regardless of whether the final was won via a walkover, a mid-match retirement, or a standard completed match.

If at any point it becomes impossible for a listed player to achieve a Calendar Grand Slam in 2026 (e.g. Sabalenka does not win the 2026 Australian Open) this market will resolve immediately to "No".

If at any point it becomes impossible for any listed player to achieve a Calendar Grand Slam in 2026 (e.g. Sabalenka wins the 2026 Australian Open but loses in the first round of 2026 French Open) this market will resolve immediately to "None".

Otherwise, this market will resolve when the results of the final 2026 Grand Slam are official.

If any of the 2026 Grand Slam Women' Singles Tournaments are cancelled, postponed after December 31, 2026 11:59 PM ET, or there i