Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| US Open WTA: Talia Gibson vs Donna Vekic Set 2 Winner | 100% |
| US Open WTA: Talia Gibson vs Donna Vekic Total Sets: O/U 2.5 | 100% |
| US Open WTA: Talia Gibson vs Donna Vekic Set 2 O/U 8.5 | 100% |
| US Open WTA: Talia Gibson vs Donna Vekic Match O/U 21.5 | 100% |
| US Open WTA: Talia Gibson vs Donna Vekic Set 2 O/U 9.5 | 100% |
| US Open WTA: Talia Gibson vs Donna Vekic Match O/U 22.5 | 100% |
| US Open WTA: Talia Gibson vs Donna Vekic Match O/U 23.5 | 100% |
| Completed Match | 50% |
| US Open WTA: Talia Gibson vs Donna Vekic Game Spread +/-1.5 | 50% |
| US Open WTA: Talia Gibson vs Donna Vekic | 21% |
| US Open WTA: Talia Gibson vs Donna Vekic Set 1 O/U 8.5 | 0% |
| US Open WTA: Talia Gibson vs Donna Vekic Set 1 Winner | 0% |
| US Open WTA: Talia Gibson vs Donna Vekic Set Handicap +/-1.5 | 0% |
| US Open WTA: Talia Gibson vs Donna Vekic Set 1 O/U 9.5 | 0% |
| US Open WTA: Talia Gibson vs Donna Vekic Set 1 O/U 10.5 | 0% |
| US Open WTA: Talia Gibson vs Donna Vekic Set 2 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to pronóstico: us open wta: talia gibson vs donna vekic. This market refers to the tennis match between Talia Gibson and Donna Vekic in the US Open WTA, originally scheduled for August 30, 2026 at 11:00AM ET. This market will resolve to 'Talia Gibson' if T…
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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 Polymarket Qué Es. 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.
- 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.
- 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.
Trade Pronóstico: US Open WTA: Talia Gibson vs Donna Vekic on Polymarket Qué Es
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