Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
89% | 11% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
89% | 11% | 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 |
|---|---|
| Generali Open: Alexander Bublik vs Quentin Halys Set 2 O/U 8.5 | 89% |
| Generali Open: Alexander Bublik vs Quentin Halys Set 1 O/U 8.5 | 72% |
| Generali Open: Alexander Bublik vs Quentin Halys Set 2 O/U 9.5 | 69% |
| Generali Open: Alexander Bublik vs Quentin Halys | 68% |
| Generali Open: Alexander Bublik vs Quentin Halys Match O/U 21.5 | 68% |
| Generali Open: Alexander Bublik vs Quentin Halys Set 2 O/U 10.5 | 66% |
| Generali Open: Alexander Bublik vs Quentin Halys Set 2 Winner | 64% |
| Generali Open: Alexander Bublik vs Quentin Halys Set 1 Winner | 63% |
| Generali Open: Alexander Bublik vs Quentin Halys Set 1 O/U 9.5 | 61% |
| Generali Open: Alexander Bublik vs Quentin Halys Match O/U 22.5 | 59% |
| Completed Match | 50% |
| Generali Open: Alexander Bublik vs Quentin Halys Match O/U 23.5 | 50% |
| Generali Open: Alexander Bublik vs Quentin Halys Set 1 O/U 10.5 | 44% |
| Generali Open: Alexander Bublik vs Quentin Halys Total Sets: O/U 2.5 | 42% |
| Generali Open: Alexander Bublik vs Quentin Halys Set Handicap +/-1.5 | 42% |
Market context
The Generali Open in Kitzbühel hosts a first-round encounter between Kazakhstan's Alexander Bublik and France's Quentin Halys on 25 July 2026. Bublik, ranked in the mid-200s, brings an unpredictable game style characterised by slice serves and unorthodox shot-making; Halys, similarly positioned in the rankings, competes as a journeyman tour player with modest ATP credentials. The 68% implied probability favours Bublik, reflecting marginal seeding advantage or recent form differential, though both players occupy the lower tiers of professional tennis where match outcomes remain volatile.
Historical ATP 250 first-round data shows that ranking-adjacent players—separated by fewer than 100 positions—produce upset rates near 35–40%, substantially higher than the 32% implied by current odds. Halys has demonstrated occasional capacity to trouble higher-ranked opponents on clay courts, his preferred surface, whilst Bublik's erratic consistency creates vulnerability despite technical gifts. Comparable matchups at Kitzbühel between players of equivalent calibre have settled near 55–60% for the marginal favourite, suggesting the market may be overweighting Bublik's edge.
Traders should monitor ATP injury bulletins and practice-court reports through late July, as either player's fitness status could shift probabilities materially. Weather conditions at Kitzbühel—particularly rain delays—carry settlement risk given the 7-day completion window; the Austrian venue's history of weather interruptions warrants attention to meteorological forecasts closer to match day. No recent news has signalled withdrawal or withdrawal risk for either competitor as of early July.
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 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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