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 |
|---|---|
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Set 1 O/U 9.5 | 100% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Match O/U 22.5 | 100% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel | 100% |
| Completed Match | 100% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Set 2 O/U 8.5 | 100% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Match O/U 21.5 | 100% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Match O/U 23.5 | 100% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Total Sets: O/U 2.5 | 100% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Set 1 O/U 8.5 | 100% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Set 2 Winner | 100% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Set 1 Winner | 0% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Set 1 O/U 10.5 | 0% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Set Handicap +/-1.5 | 0% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Set 2 O/U 9.5 | 0% |
| Wimbledon WTA: Claire Liu vs Hanne Vandewinkel Set 2 O/U 10.5 | 0% |
Market context
The underlying event is the first-round WTA match between Claire Liu and Hanne Vandewinkel at Wimbledon, scheduled for 6:00 AM ET on 29 June 2026, with Liu projected as the 57% favourite by Tennis.com despite the market’s current 0% YES probability for her advancement[2]. Historical first-round data shows Liu holds a 7–10 record in Grand Slam openings but a stronger 3–1 mark at Wimbledon, suggesting the 0% crowd-implied price may reflect an overreaction to her overall Grand Slam struggles rather than her specific grass-court form[4]. Comparable cases from recent years indicate that when a player with a solid Wimbledon history faces a qualifier with no prior major exposure, markets often correct sharply once live play begins, especially if early sets favour the experienced grass-court specialist.
Traders should monitor the official Wimbledon draw updates and any weather-related delays, as rain in London could postpone the match beyond the seven-day settlement window, triggering a 50–50 resolution[5]. Key catalysts include Liu’s pre-match warm-up reports and Vandewinkel’s fitness status, with TennisTemple noting the match is set on Court 9 under 21°C conditions, which typically favour aggressive baseline play[6]. While crypto macro factors like BTC/ETH volatility or USDC funding rates do not directly influence tennis outcomes, whale flows into prediction markets often surge when live odds diverge significantly from pre-match projections, as seen in recent WTA events where on-chain volume spiked 40% within an hour of match start[1]. Always verify real-time scores via Sportschau, which currently shows both players at 0–0 as the match is underway[1].
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.
- 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.
- 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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