Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva | 100% |
| Completed Match | 100% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Total Sets: O/U 2.5 | 100% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Set 2 Winner | 100% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Set 1 O/U 8.5 | 100% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Match O/U 21.5 | 100% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Set 2 O/U 8.5 | 100% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Match O/U 22.5 | 100% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Set 1 O/U 9.5 | 100% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Set 2 O/U 9.5 | 100% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Match O/U 23.5 | 100% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Set 1 Winner | 0% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Set Handicap +/-1.5 | 0% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Set Handicap +/-1.5 | 0% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Set 1 O/U 10.5 | 0% |
| Cincinnati Open: Nikola Bartunkova vs Alina Charaeva Set 2 O/U 10.5 | 0% |
Market context
The Cincinnati Open women's draw will feature a first-round matchup between Czech qualifier Nikola Bartunkova and Russian Alina Charaeva on 14 August 2026. Polymarket's conditional token structure currently prices this contract at 100% YES, meaning traders are pricing in certainty that the match will occur and produce a decisive winner by the settlement deadline of 21 August. This extreme pricing reflects either exceptional confidence in match completion or potential illiquidity in the order book; the USDC-denominated contract on Polygon has likely attracted minimal trading volume given the event remains months away.
Historical precedent suggests Cincinnati Open first-round matches rarely cancel outright. The tournament maintains strict scheduling protocols and rarely postpones matches beyond the seven-day resolution window without determining a winner. However, weather delays are common in Cincinnati during August, and player withdrawals do occur—typically announced 24 to 48 hours before scheduled play. Bartunkova, ranked outside the top 100, carries higher withdrawal risk than established tour players, though both competitors have competing obligations across the WTA calendar that could theoretically trigger late scratches.
Traders should monitor the official Cincinnati Open draw confirmation and any injury reports from both players' camps in the week preceding 14 August. WTA announcement patterns typically solidify match schedules five to seven days before play. The 50-50 resolution clause creates asymmetric risk: whilst the market prices near-certainty of completion, a single withdrawal or weather postponement extending past seven days would flip the contract to even odds, creating significant losses for YES holders. Court assignments and weather forecasts released mid-August will provide concrete catalysts for repricing.
Methodology
We track Cincinnati Open: Nikola Bartunkova vs Alina Charaeva across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Cincinnati Open: Nikola Bartunkova vs Alina Charaeva on PolyGram
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