Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
BTC Prediction Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on BTC Prediction → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on BTC Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on BTC Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on BTC Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on BTC Prediction → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on BTC Prediction.
Active sub-markets
Market context
The upcoming WTA Wimbledon qualification match between Alina Korneeva and Andrea Lazaro Garcia is set to begin at 7:30am ET on Court 2, with market participants assigning a 100% probability to Korneeva advancing. This first-time career encounter features two players with statistically equal career win records, yet initial odds heavily favour Korneeva at 1.40 against Lazaro Garcia’s 2.82, suggesting a decisive two-set victory is the consensus expectation[1][2].
Historical precedents in qualification rounds often show that when odds diverge significantly despite comparable career stats, the market is reacting to recent form or surface-specific advantages rather than raw head-to-head data. In similar WTA qualification scenarios, a 1.40 price point has frequently resolved to a straight-sets win, mirroring the current market’s absolute confidence in Korneeva’s ability to overcome the tie-breaker risk inherent in lower-tier matches[1].
Traders should monitor the official WTA schedule for any last-minute walkover announcements or injury signals before the first ball is struck, as these dependencies can instantly invalidate the 100% pricing[3]. While the contract settles in USDC with on-chain mechanics tied to BTC/ETH macro flows, the immediate catalyst remains the match start time; any delay beyond the seven-day window would reset the settlement to a 50-50 fair price, a risk that current pricing ignores entirely[3]. Recent tennis news confirms no pending withdrawals, reinforcing the market’s current stance[1].
Methodology
This page reads Wimbledon, Qualification WTA: Alina Korneeva vs Andrea Lazaro Garcia on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed for comparison. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
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
- Where can I trade this market with the lowest fees?
- On BTC Prediction, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What does it cost to trade on BTC Prediction?
- Zero. BTC Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, BTC Prediction triggers a quick verification flow that finishes in minutes.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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