Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Fees) Pick polygram.ink (preferred broker) |
70% | 30% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
70% | 30% | 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: Iva Jovic vs Coco Gauff Set 1 O/U 8.5 | 70% |
| US Open WTA: Iva Jovic vs Coco Gauff Game Spread +/-3.5 | 56% |
| Completed Match | 50% |
| US Open WTA: Iva Jovic vs Coco Gauff Set 2 O/U 8.5 | 50% |
| US Open WTA: Iva Jovic vs Coco Gauff Set 2 O/U 9.5 | 50% |
| US Open WTA: Iva Jovic vs Coco Gauff Set 2 O/U 10.5 | 50% |
| US Open WTA: Iva Jovic vs Coco Gauff Match O/U 21.5 | 50% |
| US Open WTA: Iva Jovic vs Coco Gauff Set Handicap +/-1.5 | 50% |
| US Open WTA: Iva Jovic vs Coco Gauff Set 1 O/U 9.5 | 46% |
| US Open WTA: Iva Jovic vs Coco Gauff Match O/U 22.5 | 43% |
| US Open WTA: Iva Jovic vs Coco Gauff Match O/U 23.5 | 41% |
| US Open WTA: Iva Jovic vs Coco Gauff Total Sets: O/U 2.5 | 38% |
| US Open WTA: Iva Jovic vs Coco Gauff Set 1 Winner | 33% |
| US Open WTA: Iva Jovic vs Coco Gauff Set 2 Winner | 33% |
| US Open WTA: Iva Jovic vs Coco Gauff | 28% |
| US Open WTA: Iva Jovic vs Coco Gauff Set 1 O/U 10.5 | 23% |
Market context
Traders on decentralised prediction markets give 70% probability to us open wta: iva jovic vs coco gauff. This market refers to the tennis match between Iva Jovic and Coco Gauff in the US Open WTA, originally scheduled for September 7, 2026 at 11:00AM ET. This market will resolve to 'Iva Jovic' if Iva Jo…
Methodology
This page reviews US Open WTA: Iva Jovic vs Coco Gauff across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi Fees, which mirrors the Polymarket order book at 0% fees.
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.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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