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 |
|---|---|
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis | 100% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 1 Winner | 100% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 1 O/U 8.5 | 100% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 1 O/U 9.5 | 100% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Total Sets: O/U 2.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Match O/U 21.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 2 O/U 8.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 2 Winner | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set Handicap +/-1.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Match O/U 22.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 2 O/U 9.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set Handicap +/-1.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 2 O/U 10.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Match O/U 23.5 | 50% |
| Completed Match | 0% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 1 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to canadian open, qualification: alexei popyrin vs thanasi kokkinakis. This market refers to the tennis match between Alexei Popyrin and Thanasi Kokkinakis in the Canadian Open, Qualification, originally scheduled for August 1, 2026 at 12:00PM ET. This market will resol…
Methodology
This page reads Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis 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.
- 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 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.
- 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.
- 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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