Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Fees) Pick polygram.ink (preferred broker) |
72% | 28% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
72% | 28% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| US Open WTA: Anna Kalinskaya vs Emma Navarro Set 1 O/U 8.5 | 72% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Match O/U 21.5 | 55% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Set 1 Winner | 53% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro | 52% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Set 2 Winner | 52% |
| Completed Match | 50% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Set 2 O/U 8.5 | 50% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Set 2 O/U 9.5 | 50% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Set 2 O/U 10.5 | 50% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Game Spread +/-0.5 | 49% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Set 1 O/U 9.5 | 49% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Match O/U 22.5 | 49% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Match O/U 23.5 | 44% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Total Sets: O/U 2.5 | 42% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Set Handicap +/-1.5 | 32% |
| US Open WTA: Anna Kalinskaya vs Emma Navarro Set 1 O/U 10.5 | 26% |
Market context
Based on real-money crowd forecasting, us open wta: anna kalinskaya vs emma navarro stands at 72% likelihood according to current market consensus. This market refers to the tennis match between Anna Kalinskaya and Emma Navarro in the US Open WTA, originally scheduled for September 6, 2026 at 11:00AM ET. This market will reso…
Methodology
We track US Open WTA: Anna Kalinskaya vs Emma Navarro 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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
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 Kalshi Fees. 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's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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 reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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