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% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Set 1 O/U 8.5 | 100% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Set 1 O/U 9.5 | 100% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Set Handicap +/-1.5 | 100% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Set 1 O/U 10.5 | 100% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson | 0% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Set 2 O/U 8.5 | 0% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Match O/U 21.5 | 0% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Set 1 Winner | 0% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Set 2 Winner | 0% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Total Sets: O/U 2.5 | 0% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Set Handicap +/-1.5 | 0% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Set 2 O/U 9.5 | 0% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Match O/U 22.5 | 0% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Match O/U 23.5 | 0% |
| Warsaw: Elizara Yaneva vs Gabriela Knutson Set 2 O/U 10.5 | 0% |
Market context
Elizara Yaneva and Gabriela Knutson are the players behind a scheduled Warsaw match that, under this contract, settles on the winner if it is completed, or to 50-50 if it is not played, tied, or pushed beyond the seven-day window. The market is priced at **0% YES**, which usually means the exchange is treating the listed outcome as effectively not expected, often because the fixture has been voided, abandoned, or is no longer progressing in a way that leaves a clear winner before the deadline.
Yaneva’s public match record suggests a player with a solid ITF-level track record and a strong 2025/26 run, including winning seasons on hard courts and a career win rate comfortably above .500. ESPN lists her career singles record at 35-21, while other tennis databases show a broader body of results with a strong hard-court split and multiple ITF titles. That matters for reading a zero-price contract: if the market is at 0% despite a live draw listing, traders are usually looking past raw player form and focusing on whether the match is actually on track to produce an on-chain settlement event rather than a normal tennis result.
The key catalysts are operational rather than sporting: whether the Warsaw order of play still includes the match, whether either player has withdrawn, and whether the tournament has already moved the fixture into a postponed or replaced slot. For a USDC-settled market, the main risk is not the underlying tennis edge but a contract path that forces a void-style 50-50 resolution if no winner is determined in time; that is the event state traders should verify against tournament updates before the settlement window closes. If broader crypto conditions matter, they do so mainly through wallet positioning and risk appetite rather than the match itself.
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 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.
- 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%.
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