National Bank Open: Marta Kostyuk vs Madison Keys

This market refers to the tennis match between Marta Kostyuk and Madison Keys in the National Bank Open, originally scheduled for August 5, 2026 at 11:00AM ET. This market will resolve to 'Marta Kost...

Vol 24h: $748.2K Total: $753.1K Liq: $420.2K Ends: 2026-08-12 Trade on Polymarket →
98%
Marta Kostyuk
2%
Madison Keys
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Polymarket Odds

On-chain price
98%
Marta Kostyuk
2%
Madison Keys

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AI
AI Analysis Gemini
75%
AI estimate

Madison Keys is a significantly higher-ranked and more experienced player with a powerful game well-suited for hard courts, making the current market odds for Kostyuk highly improbable.

Edge: The market heavily overestimates Marta Kostyuk's chances and severely undervalues Madison Keys, presenting a strong betting opportunity on Keys.

AI DISAGREES

This market presents an extreme valuation, making it a high-risk, high-reward opportunity for investors. Consider shorting Kostyuk or buying Keys, as the implied 98% probability for Kostyuk is likely overstating her true win probability, offering potential for significant gains if Keys pulls off even a minor upset or the market corrects.

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98% Marta Kostyuk 2% Madison Keys
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