Traders overwhelmingly back None at 99.2% implied probability for a women's Calendar Grand Slam in 2026—the feat of sweeping Australian Open, French Open, Wimbledon, and US Open—mirroring the Open Era's singular precedent by Steffi Graf in 1988 amid entrenched surface specialists and injury volatility. Elena Rybakina's Australian Open title win over Aryna Sabalenka on January 31 elevated her to the lone 0.9% contender, yet her clay-court struggles at Roland Garros, where Iga Świątek dominates, precede grass and hardcourt shifts favoring rivals like Sabalenka or Coco Gauff. With French Open entry lists finalized and qualifiers underway as of mid-May, no other player holds multiple majors, reinforcing the daunting path; a challenge requires Rybakina's flawless run plus top-seeded withdrawals or collapses.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$1,571,855 Vol.
$1,571,855 Vol.
Dec 31, 2026
None
99%
Elena Rybakina
1%
$1,571,855 Vol.
$1,571,855 Vol.
Dec 31, 2026
None
$1,417,914 Vol.
99%
Elena Rybakina
$71,187 Vol.
1%
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 is otherwise no winner declared within that timeframe, this market will resolve to “None”.
The primary resolution source for this market will be information from the organizers of the Grand Slam tournaments; however, a consensus of credible reporting may also be used.Traders overwhelmingly back None at 99.2% implied probability for a women's Calendar Grand Slam in 2026—the feat of sweeping Australian Open, French Open, Wimbledon, and US Open—mirroring the Open Era's singular precedent by Steffi Graf in 1988 amid entrenched surface specialists and injury volatility. Elena Rybakina's Australian Open title win over Aryna Sabalenka on January 31 elevated her to the lone 0.9% contender, yet her clay-court struggles at Roland Garros, where Iga Świątek dominates, precede grass and hardcourt shifts favoring rivals like Sabalenka or Coco Gauff. With French Open entry lists finalized and qualifiers underway as of mid-May, no other player holds multiple majors, reinforcing the daunting path; a challenge requires Rybakina's flawless run plus top-seeded withdrawals or collapses.
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 is otherwise no winner declared within that timeframe, this market will resolve to “None”.
The primary resolution source for this market will be information from the organizers of the Grand Slam tournaments; however, a consensus of credible reporting may also be used.
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 is otherwise no winner declared within that timeframe, this market will resolve to “None”.
The primary resolution source for this market will be information from the organizers of the Grand Slam tournaments; however, a consensus of credible reporting may also be used.
Market Opened: Jan 6, 2026, 7:09 PM ET
Volume
$1,571,855End Date
Dec 31, 2026Market Opened
Jan 6, 2026, 7:09 PM ETResolver
0x2F5e3684c...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 is otherwise no winner declared within that timeframe, this market will resolve to “None”.
The primary resolution source for this market will be information from the organizers of the Grand Slam tournaments; however, a consensus of credible reporting may also be used.Traders overwhelmingly back None at 99.2% implied probability for a women's Calendar Grand Slam in 2026—the feat of sweeping Australian Open, French Open, Wimbledon, and US Open—mirroring the Open Era's singular precedent by Steffi Graf in 1988 amid entrenched surface specialists and injury volatility. Elena Rybakina's Australian Open title win over Aryna Sabalenka on January 31 elevated her to the lone 0.9% contender, yet her clay-court struggles at Roland Garros, where Iga Świątek dominates, precede grass and hardcourt shifts favoring rivals like Sabalenka or Coco Gauff. With French Open entry lists finalized and qualifiers underway as of mid-May, no other player holds multiple majors, reinforcing the daunting path; a challenge requires Rybakina's flawless run plus top-seeded withdrawals or collapses.
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 is otherwise no winner declared within that timeframe, this market will resolve to “None”.
The primary resolution source for this market will be information from the organizers of the Grand Slam tournaments; however, a consensus of credible reporting may also be used.
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 is otherwise no winner declared within that timeframe, this market will resolve to “None”.
The primary resolution source for this market will be information from the organizers of the Grand Slam tournaments; however, a consensus of credible reporting may also be used.
Volume
$1,571,855End Date
Dec 31, 2026Market Opened
Jan 6, 2026, 7:09 PM ETResolver
0x2F5e3684c...Traders overwhelmingly back None at 99.2% implied probability for a women's Calendar Grand Slam in 2026—the feat of sweeping Australian Open, French Open, Wimbledon, and US Open—mirroring the Open Era's singular precedent by Steffi Graf in 1988 amid entrenched surface specialists and injury volatility. Elena Rybakina's Australian Open title win over Aryna Sabalenka on January 31 elevated her to the lone 0.9% contender, yet her clay-court struggles at Roland Garros, where Iga Świątek dominates, precede grass and hardcourt shifts favoring rivals like Sabalenka or Coco Gauff. With French Open entry lists finalized and qualifiers underway as of mid-May, no other player holds multiple majors, reinforcing the daunting path; a challenge requires Rybakina's flawless run plus top-seeded withdrawals or collapses.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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