Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Newport: Arthur Gea vs Tristan Schoolkate | 100% |
| Completed Match | 100% |
| Newport: Arthur Gea vs Tristan Schoolkate Total Sets: O/U 2.5 | 100% |
| Newport: Arthur Gea vs Tristan Schoolkate Set 2 O/U 8.5 | 100% |
| Newport: Arthur Gea vs Tristan Schoolkate Set 2 Winner | 100% |
| Newport: Arthur Gea vs Tristan Schoolkate Match O/U 21.5 | 100% |
| Newport: Arthur Gea vs Tristan Schoolkate Set 1 O/U 8.5 | 100% |
| Newport: Arthur Gea vs Tristan Schoolkate Set 2 O/U 9.5 | 100% |
| Newport: Arthur Gea vs Tristan Schoolkate Match O/U 22.5 | 100% |
| Newport: Arthur Gea vs Tristan Schoolkate Set 1 O/U 9.5 | 100% |
| Newport: Arthur Gea vs Tristan Schoolkate Set 2 O/U 10.5 | 100% |
| Newport: Arthur Gea vs Tristan Schoolkate Match O/U 23.5 | 100% |
| Newport: Arthur Gea vs Tristan Schoolkate Set 1 Winner | 0% |
| Newport: Arthur Gea vs Tristan Schoolkate Set Handicap +/-1.5 | 0% |
| Newport: Arthur Gea vs Tristan Schoolkate Set Handicap +/-1.5 | 0% |
| Newport: Arthur Gea vs Tristan Schoolkate Set 1 O/U 10.5 | 0% |
Market context
Market consensus: 100% chance of newport: arthur gea vs tristan schoolkate. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Arthur Gea and Tristan Schoolkate in the Newport, originally scheduled for July 9, 2026 at 11:00AM ET. This market will resolve to '…
Methodology
We track Newport: Arthur Gea vs Tristan Schoolkate 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
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
- 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 PolyGram. 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Newport: Arthur Gea vs Tristan Schoolkate on PolyGram
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