Traders overwhelmingly price "None" at 97.7% for a women's calendar Grand Slam in 2026, reflecting the feat's extreme rarity—last achieved by Steffi Graf in 1988 amid diverse surfaces from hard-court Australian Open to clay French Open, grass Wimbledon, and hard US Open. Elena Rybakina's Australian Open triumph over Aryna Sabalenka in January vaulted her to No. 2 in WTA rankings with a 21-5 record, making her the sole remaining contender, yet her 1.9% implied probability underscores clay vulnerabilities ahead at Roland Garros, where Iga Swiatek dominates, plus fierce competition from world No. 1 Sabalenka (recent Miami win over Rybakina) and Coco Gauff. A challenge requires Rybakina's flawless health, peak form across surfaces, and upset-proof runs through deep draws.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$1,565,786 Vol.
$1,565,786 Vol.
Dec 31, 2026
None
98%
Elena Rybakina
2%
$1,565,786 Vol.
$1,565,786 Vol.
Dec 31, 2026
None
$1,412,716 Vol.
98%
Elena Rybakina
$70,316 Vol.
2%
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 price "None" at 97.7% for a women's calendar Grand Slam in 2026, reflecting the feat's extreme rarity—last achieved by Steffi Graf in 1988 amid diverse surfaces from hard-court Australian Open to clay French Open, grass Wimbledon, and hard US Open. Elena Rybakina's Australian Open triumph over Aryna Sabalenka in January vaulted her to No. 2 in WTA rankings with a 21-5 record, making her the sole remaining contender, yet her 1.9% implied probability underscores clay vulnerabilities ahead at Roland Garros, where Iga Swiatek dominates, plus fierce competition from world No. 1 Sabalenka (recent Miami win over Rybakina) and Coco Gauff. A challenge requires Rybakina's flawless health, peak form across surfaces, and upset-proof runs through deep draws.
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
$1,565,786End 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 price "None" at 97.7% for a women's calendar Grand Slam in 2026, reflecting the feat's extreme rarity—last achieved by Steffi Graf in 1988 amid diverse surfaces from hard-court Australian Open to clay French Open, grass Wimbledon, and hard US Open. Elena Rybakina's Australian Open triumph over Aryna Sabalenka in January vaulted her to No. 2 in WTA rankings with a 21-5 record, making her the sole remaining contender, yet her 1.9% implied probability underscores clay vulnerabilities ahead at Roland Garros, where Iga Swiatek dominates, plus fierce competition from world No. 1 Sabalenka (recent Miami win over Rybakina) and Coco Gauff. A challenge requires Rybakina's flawless health, peak form across surfaces, and upset-proof runs through deep draws.
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
$1,565,786End Date
Dec 31, 2026Market Opened
Jan 6, 2026, 7:09 PM ETResolver
0x2F5e3684c...Traders overwhelmingly price "None" at 97.7% for a women's calendar Grand Slam in 2026, reflecting the feat's extreme rarity—last achieved by Steffi Graf in 1988 amid diverse surfaces from hard-court Australian Open to clay French Open, grass Wimbledon, and hard US Open. Elena Rybakina's Australian Open triumph over Aryna Sabalenka in January vaulted her to No. 2 in WTA rankings with a 21-5 record, making her the sole remaining contender, yet her 1.9% implied probability underscores clay vulnerabilities ahead at Roland Garros, where Iga Swiatek dominates, plus fierce competition from world No. 1 Sabalenka (recent Miami win over Rybakina) and Coco Gauff. A challenge requires Rybakina's flawless health, peak form across surfaces, and upset-proof runs through deep draws.
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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