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 |
|---|---|
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang | 100% |
| Completed Match | 100% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Set 2 O/U 8.5 | 100% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Set 1 O/U 8.5 | 100% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Total Sets: O/U 2.5 | 100% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Match O/U 21.5 | 100% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Set 2 Winner | 100% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Set 1 O/U 9.5 | 100% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Match O/U 22.5 | 100% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Match O/U 23.5 | 100% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Set 1 Winner | 0% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Set Handicap +/-1.5 | 0% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Set 2 O/U 9.5 | 0% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Set Handicap +/-1.5 | 0% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Set 2 O/U 10.5 | 0% |
| ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang Set 1 O/U 10.5 | 0% |
Market context
Nastasja Schunk, a German ITF circuit regular, faces South Korean qualifier Gaeul Jang in the W50 Prague draw scheduled for 18 August 2026. The market currently reflects 100% implied probability for Schunk's advancement, suggesting either strong conviction in her form or minimal liquidity depth at the current odds. Settlement occurs by 25 August, allowing a seven-day window for completion or rescheduling before the 50-50 tie-break clause activates.
ITF W50 tournaments sit at the lower tier of professional women's tennis, where seeding and ranking disparities often correlate with match outcomes more predictably than higher-tier events. Schunk's career trajectory on the ITF circuit provides the baseline for assessing whether the 100% probability reflects genuine form advantage or represents an edge case where one player's withdrawal, injury, or scheduling conflict has already been factored into market pricing. Historical W50 matches involving unseeded or qualifier opponents typically show wider probability ranges when both players are active and confirmed.
Traders should monitor official ITF and WTA announcements for any withdrawal notices or schedule changes through mid-August. Schunk's recent match results and ranking movement, available via WTA databases and ITF live scoring, will indicate whether current form supports the extreme probability. Jang's qualifying performance and surface preference on clay—Prague's court type—merit review before settlement. Any delay beyond the scheduled date without a completed match triggers automatic 50-50 resolution, creating binary risk for positions held through the final settlement window.
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.
UK Frequently Asked Questions
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
Trade ITF W50 Prague Women: Nastasja Schunk vs Gaeul Jang on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →