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 |
|---|---|
| Completed Match | 100% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Match O/U 21.5 | 100% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Total Sets: O/U 2.5 | 100% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Set 2 Winner | 100% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Set 1 O/U 8.5 | 100% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Match O/U 22.5 | 100% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Set 1 O/U 9.5 | 100% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Match O/U 23.5 | 100% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Set 1 O/U 10.5 | 100% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela | 0% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Set 1 Winner | 0% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Set 2 O/U 8.5 | 0% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Set Handicap +/-1.5 | 0% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Set 2 O/U 9.5 | 0% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Set Handicap +/-1.5 | 0% |
| Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela Set 2 O/U 10.5 | 0% |
Market context
Live Polymarket data shows 100% YES probability for Bastad: Noma Noha Akugue vs Irene Burillo Escorihuela. This market refers to the tennis match between Noma Noha Akugue and Irene Burillo Escorihuela in the Bastad, originally scheduled for July 6, 2026 at 4:00AM ET. This market will resolve to 'Noma Noha…
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 are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- 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.
- 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.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
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