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% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Set 1 Winner | 100% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Match O/U 21.5 | 100% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Total Sets: O/U 2.5 | 100% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Set 1 O/U 8.5 | 100% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Match O/U 22.5 | 100% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Set 2 O/U 8.5 | 100% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Set 1 O/U 9.5 | 100% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Match O/U 23.5 | 100% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Set 2 O/U 9.5 | 100% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Set 2 O/U 10.5 | 100% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan | 0% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Set 2 Winner | 0% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Set Handicap +/-1.5 | 0% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Set Handicap +/-1.5 | 0% |
| Hamburg European Open, Qualification: Varvara Lepchenko vs Elina Avanesyan Set 1 O/U 10.5 | 0% |
Market context
The Hamburg European Open qualification match between Varvara Lepchenko and Elina Avanesyan, originally set for 20 July 2026, has already concluded with Avanesyan winning 2–1 in sets, confirming her advancement. This real-world outcome directly contradicts the current 0% YES crowd-implied probability for Lepchenko, suggesting a significant pricing inefficiency or a lag in market resolution on the platform. In crypto prediction markets, such discrepancies often arise when on-chain settlement delays fail to reflect off-chain event finality, creating arbitrage opportunities before the contract resolves.
Historically, similar tennis qualification markets on platforms like Polymarket have resolved within hours of match completion, with USDC settlements reflecting the official WTA result without delay. When live scores are confirmed via authoritative sources like RIA or the WTA, whale flows typically correct mispriced contracts rapidly, especially when the settlement window extends beyond the event date. The 50-50 fallback clause for cancellations or delays beyond seven days is irrelevant here, as the match was completed, reinforcing that the 0% probability is likely an error rather than a risk hedge.
Traders should monitor the official settlement timestamp on btc-prediction.bet and cross-reference with real-time tennis data feeds from the WTA or Flashscore to confirm the resolution trigger. Any delay in updating the contract state after the match result is public may signal technical friction in the oracle feed, a known catalyst for temporary price dislocation. With the settlement window ending 27 July 2026, the market remains open for correction, and funding rates on related crypto derivatives may reflect heightened uncertainty if the resolution lags further.
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 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.
- 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.
- 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.
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