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 |
|---|---|
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova | 100% |
| Completed Match | 100% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Set 1 Winner | 100% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Total Sets: O/U 2.5 | 100% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Match O/U 21.5 | 100% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Match O/U 22.5 | 100% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Set 2 Winner | 0% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Set 1 O/U 8.5 | 0% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Set 2 O/U 8.5 | 0% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Set Handicap +/-1.5 | 0% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Set 1 O/U 9.5 | 0% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Set 2 O/U 9.5 | 0% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Set 1 O/U 10.5 | 0% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Match O/U 23.5 | 0% |
| Livesport Prague Open, Qualification: Xinyu Gao vs Linda Fruhvirtova Set 2 O/U 10.5 | 0% |
Market context
The Livesport Prague Open qualification round will feature Chinese player Xinyu Gao against Czech prospect Linda Fruhvirtova on 19 July 2026. The match forms part of the WTA 250 event's preliminary draw, with advancement to the main draw at stake. Current crowd-implied probability sits at 100% YES for Gao, reflecting either strong conviction in her form or limited liquidity depth in this particular fixture.
Fruhvirtova, a domestic Czech player competing on home soil, typically benefits from crowd support and familiarity with local court conditions—factors that have historically compressed probability gaps in qualifying matches at regional events. Comparable WTA qualifying fixtures involving unseeded players from competing nations show settlement volatility when home-court advantage meets international ranking differentials. The 100% reading suggests either Gao holds a decisive ranking advantage or the market has concentrated around early positioning without sufficient counter-flow.
Traders should monitor official WTA scheduling confirmations through mid-July, as weather disruptions in Prague during summer can trigger delays beyond the seven-day resolution window, triggering the 50-50 tie-break clause. Fruhvirtova's recent match results and any late withdrawals from the main draw—which could affect qualifying bracket composition—warrant tracking via WTA official channels. USDC settlement will execute post-match completion; any incomplete play after the scheduled date carries resolution risk that may create arbitrage opportunities between on-chain odds and conventional sportsbooks during the settlement window closure on 26 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
- 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.
- 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.
- 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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