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 |
|---|---|
| Completed Match | 100% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Set 1 Winner | 100% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Total Sets: O/U 2.5 | 100% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Match O/U 21.5 | 100% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova | 0% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Set 1 O/U 8.5 | 0% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Set 2 O/U 8.5 | 0% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Set 1 O/U 9.5 | 0% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Set 2 Winner | 0% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Set Handicap +/-1.5 | 0% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Set 2 O/U 9.5 | 0% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Match O/U 22.5 | 0% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Set 1 O/U 10.5 | 0% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Set 2 O/U 10.5 | 0% |
| Livesport Prague Open: Maya Joint vs Tereza Valentova Match O/U 23.5 | 0% |
Market context
Maya Joint was due to play Tereza Valentova in Prague, a women’s hard-court match that sits in the main draw context of the Livesport Prague Open. Pre-match pricing in the tennis trade leaned towards Valentova, with one preview giving her the shorter line and making her the pick in straight sets[1].
A 0% crowd-implied price can matter less than the underlying match mechanics because these markets settle on a binary advance-or-not basis, not on game score. In comparable tennis markets, the key read is whether the favourite is merely expected to win or is likely to get through at all; that distinction matters because a suspension, walkover, retirement or cancellation can push settlement into the market’s fallback logic rather than a clean winner outcome. The BTC/USDC or ETH/USDC backdrop is relevant only insofar as it affects broader risk appetite and liquidity, but the contract itself resolves off the tennis result.
The main catalysts are straightforward: final order-of-play confirmation, any court-time shifts, and whether the match actually starts. If it is postponed beyond the market’s seven-day window without a winner, or never played, settlement can move to 50-50 under the rules; if play begins but does not finish, the advance condition will depend on the official completion pathway. Traders should also watch for late injury withdrawals and same-day schedule changes, since those are the most common drivers of tennis market repricing before on-chain settlement.
Sources: 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.
- 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.
- 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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