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% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Set 2 O/U 8.5 | 100% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Set 2 O/U 9.5 | 100% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Set Handicap +/-1.5 | 100% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Set 2 O/U 10.5 | 100% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova | 0% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Total Sets: O/U 2.5 | 0% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Match O/U 21.5 | 0% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Set 1 Winner | 0% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Set 2 Winner | 0% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Set 1 O/U 8.5 | 0% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Set Handicap +/-1.5 | 0% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Match O/U 22.5 | 0% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Set 1 O/U 9.5 | 0% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Match O/U 23.5 | 0% |
| Iasi Open: Dominika Salkova vs Alevtina Ibragimova Set 1 O/U 10.5 | 0% |
Market context
Market consensus: 100% chance of iasi open: dominika salkova vs alevtina ibragimova. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Dominika Salkova and Alevtina Ibragimova in the Iasi Open, originally scheduled for July 14, 2026 at 3:00AM ET. This market will res…
Methodology
This page reads Iasi Open: Dominika Salkova vs Alevtina Ibragimova on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
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.
- 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.
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