Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Set 2 O/U 8.5 | 100% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Set 1 O/U 8.5 | 100% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Set 2 O/U 9.5 | 100% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Set 1 O/U 9.5 | 100% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Set 2 Winner | 100% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich | 91% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Total Sets: O/U 2.5 | 52% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Match O/U 21.5 | 51% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Match O/U 22.5 | 51% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Match O/U 23.5 | 51% |
| Completed Match | 50% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Set Handicap +/-1.5 | 38% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Set Handicap +/-1.5 | 13% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Set 1 Winner | 0% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Set 2 O/U 10.5 | 0% |
| Newport: Alexis Galarneau vs Juan Pablo Ficovich Set 1 O/U 10.5 | 0% |
Market context
Live Polymarket data shows 100% YES probability for Newport: Alexis Galarneau vs Juan Pablo Ficovich. This market refers to the tennis match between Alexis Galarneau and Juan Pablo Ficovich in the Newport, originally scheduled for July 7, 2026 at 11:00AM ET. This market will resolve to 'Alexis Galarn…
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- Are crypto prediction markets taxable in the US?
- In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.
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