Current implied probability
Alexandrova 74%+4.5ptLeader of 16 outcomes
Market quality
≤74 / 100
Medium quality24h Volume
$15.3K
Liquidity
$185.1K
High liquiditySpread
1.0 pt
Tight spreadComments
0
Market data
Updated 12 minutes ago
Sep 3, 26, 4:14 AMSep 11, 26, 3:00 PM
Trends
Rules
This market refers to the tennis match between Marta Kostyuk and Ekaterina Alexandrova in the US Open WTA, originally scheduled for September 4, 2026 at 11:00AM ET.
- This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Ekaterina Alexandrova.
- This market will resolve to 'Ekaterina Alexandrova' if Ekaterina Alexandrova advances against Marta Kostyuk.
- If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50.
- If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
- If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
Prediction Source Comparison
Open markets
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- 24h Vol
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KALSHISt. Louis vs Los Angeles D
- St. Louis+30.0pt57.4%
- Los Angeles D-29.0pt42.6%
- Total Vol
- $6.1M
- 24h Vol
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KALSHIOmega European Masters Winner
- Angel Ayora Fanegas+9.0pt10%
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+97 more outcomes
KALSHIUAB vs Illinois
- Illinois+2.0pt99%
- UAB-3.0pt1%
- Total Vol
- $3.3M
- 24h Vol
- $3.2M
KALSHIA's vs Seattle
- A's+37.0pt72.3%
- Seattle-37.0pt27.7%
- Total Vol
- $3.3M
- 24h Vol
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KALSHIIdaho vs Utah
- Utah99%
- Idaho-1.0pt1%
- Total Vol
- $2.8M
- 24h Vol
- $2.5M
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Frequently asked questions
- What are the current odds for US Open WTA: Marta Kostyuk vs Ekaterina Alexandrova?
- Polymarket prices Alexandrova at 74% as of September 4, 2026.
- When does US Open WTA: Marta Kostyuk vs Ekaterina Alexandrova resolve?
- US Open WTA: Marta Kostyuk vs Ekaterina Alexandrova is scheduled to resolve on September 11, 2026.
- How is US Open WTA: Marta Kostyuk vs Ekaterina Alexandrova settled?
- Polymarket settles this market as follows: This market refers to the tennis match between Marta Kostyuk and Ekaterina Alexandrova in the US Open WTA, originally scheduled for September 4, 2026 at 11:00AM ET.
- Where else is US Open WTA: Marta Kostyuk vs Ekaterina Alexandrova listed?
- The same question is also listed on Futuur, Gemini, Limitless.