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 |
|---|---|
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk | 100% |
| Completed Match | 100% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Set 1 Winner | 100% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Set 2 O/U 8.5 | 100% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Match O/U 21.5 | 100% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Total Sets: O/U 2.5 | 100% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Match O/U 22.5 | 100% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Match O/U 23.5 | 100% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Set 2 Winner | 0% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Set 1 O/U 8.5 | 0% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Set Handicap +/-1.5 | 0% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Set 2 O/U 9.5 | 0% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Set 1 O/U 9.5 | 0% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Set 1 O/U 10.5 | 0% |
| Hamburg European Open: Oleksandra Oliynykova vs Nastasja Schunk Set 2 O/U 10.5 | 0% |
Market context
Oleksandra Oliynykova and Nastasja Schunk were scheduled to meet in the Hamburg European Open round of 32, but the match had not started when listed by live score and event pages on 21 July 2026.[1][3][4] That matters for this market because a non-played or heavily delayed fixture can still settle at 50–50 under the contract terms, even if the pre-match screen showed a live price strongly favouring one side.[2]
Comparable tennis markets often compress towards the favourite when a match is officially on the board, but they can reprice sharply if the draw is revised, play is pushed back, or a walkover is confirmed close to start time. Here, the crowd-implied 100% YES reading needs to be treated cautiously: the listed pre-match data showed Oliynykova as the clear market leader at 87%, while Schunk was only 13%, which points to an asymmetry in expectation rather than a guaranteed result.[2] On-chain settlement in USDC means the final outcome is binary and cleanly transmitted once the contract condition is met, so the practical question is whether the tennis result is recorded within the seven-day window.
The main catalysts are tournament scheduling updates, any official walkover or retirement notices, and whether the match is actually completed before the market’s settlement deadline. For crypto-linked traders, the relevant macro angle is secondary but not irrelevant: broader BTC and ETH risk appetite can shape liquidity and slippage around event-driven markets, especially if funding turns crowded or whale flows shift into USDC for park-and-wait positioning. The decisive input remains the tournament feed and match status, not the pre-match headline price.
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
- 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.
- 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 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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