Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Newport: Katie Volynets vs Tatjana Maria Set 2 O/U 8.5 | 100% |
| Newport: Katie Volynets vs Tatjana Maria Set Handicap +/-1.5 | 100% |
| Newport: Katie Volynets vs Tatjana Maria Set 2 O/U 9.5 | 100% |
| Newport: Katie Volynets vs Tatjana Maria | 0% |
| Newport: Katie Volynets vs Tatjana Maria Total Sets: O/U 2.5 | 0% |
| Newport: Katie Volynets vs Tatjana Maria Set 1 O/U 8.5 | 0% |
| Newport: Katie Volynets vs Tatjana Maria Match O/U 21.5 | 0% |
| Newport: Katie Volynets vs Tatjana Maria Set 1 Winner | 0% |
| Newport: Katie Volynets vs Tatjana Maria Set 2 Winner | 0% |
| Newport: Katie Volynets vs Tatjana Maria Set Handicap +/-1.5 | 0% |
| Newport: Katie Volynets vs Tatjana Maria Set 1 O/U 9.5 | 0% |
| Newport: Katie Volynets vs Tatjana Maria Match O/U 22.5 | 0% |
| Newport: Katie Volynets vs Tatjana Maria Set 1 O/U 10.5 | 0% |
| Newport: Katie Volynets vs Tatjana Maria Match O/U 23.5 | 0% |
| Newport: Katie Volynets vs Tatjana Maria Set 2 O/U 10.5 | 0% |
Market context
Market consensus: 100% chance of newport: katie volynets vs tatjana maria. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Katie Volynets and Tatjana Maria in the Newport, originally scheduled for July 12, 2026 at 12:30PM ET. This market will resolve to '…
Methodology
This page reviews Newport: Katie Volynets vs Tatjana Maria 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 Who Will Win, which mirrors the Polymarket order book at 0% fees.
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
- 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 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.
- 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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