The extreme historical rarity of completing a calendar Grand Slam in women's tennis drives the market's overwhelming consensus on "None" at 99.1% implied probability. No player has swept the Australian Open, French Open, Wimbledon, and US Open in the same year since 1988, and the modern WTA tour's depth, surface-specific demands, and grueling schedule make such dominance exceptionally difficult. Elena Rybakina at 0.9% stands out due to her powerful serve and proven Grand Slam pedigree, yet even she and other top-ranked contenders would need flawless health, consistent form across hard, clay, and grass, plus favorable draws to overcome the field's rising talents. Late-season injuries, upsets in key majors, or shifts in WTA rankings could still open realistic pathways for a surprise outcome before the year ends.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$1,572,810 Vol.
$1,572,810 Vol.
Dec 31, 2026
None
99%
Elena Rybakina
1%
$1,572,810 Vol.
$1,572,810 Vol.
Dec 31, 2026
None
$1,419,034 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.The extreme historical rarity of completing a calendar Grand Slam in women's tennis drives the market's overwhelming consensus on "None" at 99.1% implied probability. No player has swept the Australian Open, French Open, Wimbledon, and US Open in the same year since 1988, and the modern WTA tour's depth, surface-specific demands, and grueling schedule make such dominance exceptionally difficult. Elena Rybakina at 0.9% stands out due to her powerful serve and proven Grand Slam pedigree, yet even she and other top-ranked contenders would need flawless health, consistent form across hard, clay, and grass, plus favorable draws to overcome the field's rising talents. Late-season injuries, upsets in key majors, or shifts in WTA rankings could still open realistic pathways for a surprise outcome before the year ends.
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
$1,572,810End 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.The extreme historical rarity of completing a calendar Grand Slam in women's tennis drives the market's overwhelming consensus on "None" at 99.1% implied probability. No player has swept the Australian Open, French Open, Wimbledon, and US Open in the same year since 1988, and the modern WTA tour's depth, surface-specific demands, and grueling schedule make such dominance exceptionally difficult. Elena Rybakina at 0.9% stands out due to her powerful serve and proven Grand Slam pedigree, yet even she and other top-ranked contenders would need flawless health, consistent form across hard, clay, and grass, plus favorable draws to overcome the field's rising talents. Late-season injuries, upsets in key majors, or shifts in WTA rankings could still open realistic pathways for a surprise outcome before the year ends.
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
$1,572,810End Date
Dec 31, 2026Market Opened
Jan 6, 2026, 7:09 PM ETResolver
0x2F5e3684c...The extreme historical rarity of completing a calendar Grand Slam in women's tennis drives the market's overwhelming consensus on "None" at 99.1% implied probability. No player has swept the Australian Open, French Open, Wimbledon, and US Open in the same year since 1988, and the modern WTA tour's depth, surface-specific demands, and grueling schedule make such dominance exceptionally difficult. Elena Rybakina at 0.9% stands out due to her powerful serve and proven Grand Slam pedigree, yet even she and other top-ranked contenders would need flawless health, consistent form across hard, clay, and grass, plus favorable draws to overcome the field's rising talents. Late-season injuries, upsets in key majors, or shifts in WTA rankings could still open realistic pathways for a surprise outcome before the year ends.
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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