Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
75% | 25% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
75% | 25% | 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: Belinda Bencic vs Coco Gauff Set 1 O/U 8.5 | 75% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Set 2 O/U 10.5 | 62% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Match O/U 21.5 | 56% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff | 52% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Set 2 O/U 9.5 | 52% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Set 2 Winner | 51% |
| Completed Match | 50% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Set 1 Winner | 50% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Match O/U 22.5 | 49% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Match O/U 23.5 | 45% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Total Sets: O/U 2.5 | 43% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Set 2 O/U 8.5 | 39% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Set Handicap +/-1.5 | 28% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Set 1 O/U 9.5 | 26% |
| Wimbledon WTA: Belinda Bencic vs Coco Gauff Set 1 O/U 10.5 | 25% |
Market context
Belinda Bencic and Coco Gauff face off in the fourth round of Wimbledon’s WTA tournament today, with the crowd-implied probability favouring Bencic at 52% YES to advance. This market resolves to the player who wins the match, or to a 50-50 split if the contest is cancelled, tied, or delayed beyond seven days without a winner. Settlement occurs in USDC on-chain, tying the outcome directly to BTC and ETH macro movements via exchange spot and funding rate shifts that often precede major crypto volatility.
Historically, Gauff dominates the head-to-head record, having won five of their seven previous meetings, though none occurred on grass courts where Bencic’s tactical precision and serve efficiency typically shine [2][8]. Comparable cases from past Wimbledon rounds show that players with superior grass records often overturn overall H2H deficits, particularly when the underdog holds a higher first-serve percentage and fewer unforced errors on turf [3]. This dynamic frames the current 52% probability as a cautious tilt toward Bencic’s surface advantage rather than a definitive Gauff reversal.
Traders should monitor pre-match announcements on player fitness, especially given Gauff’s recent Adelaide semi-final clash and Bencic’s deep run ambitions in prior years [2][3]. Dependencies include weather delays, which could trigger the 50-50 settlement clause, and any late changes to the match schedule that might affect on-chain liquidity. Whale flows in USDC and BTC/ETH funding rates often spike ahead of such events, so monitoring crypto data sources like Polymarket volume trends or CoinGlass funding metrics can signal emerging sentiment shifts [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.
- 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 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.
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