Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Fees) Pick polygram.ink (preferred broker) |
65% | 35% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
65% | 35% | 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: Jessica Bouzas Maneiro vs Elena Rybakina Set 1 O/U 8.5 | 65% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Game Spread +/-4.5 | 64% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Set Handicap +/-1.5 | 63% |
| Completed Match | 50% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Set 2 O/U 8.5 | 50% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Set 2 O/U 9.5 | 50% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Set 2 O/U 10.5 | 50% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Set 1 O/U 9.5 | 41% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Match O/U 21.5 | 40% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Match O/U 22.5 | 38% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Match O/U 23.5 | 31% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Total Sets: O/U 2.5 | 30% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Set 2 Winner | 24% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Set 1 Winner | 22% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Set 1 O/U 10.5 | 21% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina | 16% |
| US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina Set Handicap +/-1.5 | 7% |
Market context
Based on real-money crowd forecasting, us open wta: jessica bouzas maneiro vs elena rybakina stands at 65% likelihood according to current market consensus. This market refers to the tennis match between Jessica Bouzas Maneiro and Elena Rybakina in the US Open WTA, originally scheduled for September 3, 2026 at 11:00AM ET. This market …
Methodology
We track US Open WTA: Jessica Bouzas Maneiro vs Elena Rybakina 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
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
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.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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 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.
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