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 |
|---|---|
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Set 2 Winner | 100% |
| Completed Match | 100% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Match O/U 21.5 | 100% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Match O/U 22.5 | 100% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Match O/U 23.5 | 100% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Total Sets: O/U 2.5 | 100% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Set 2 O/U 8.5 | 100% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Set 1 O/U 8.5 | 100% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Set 1 O/U 9.5 | 100% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya | 0% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Set 2 O/U 9.5 | 0% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Set 2 O/U 10.5 | 0% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Set Handicap +/-1.5 | 0% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Set 1 O/U 10.5 | 0% |
| Wimbledon WTA: Diane Parry vs Anna Kalinskaya Set 1 Winner | 0% |
Market context
The underlying event is the second-round WTA singles match at Wimbledon between Diane Parry and Anna Kalinskaya, scheduled for 6:00 AM ET on 1 July 2026. Parry has already secured her spot by defeating Francesca Jones 6-4, 6-4 in the opening round, while Kalinskaya enters as the clear favourite with betting odds of 1.65 compared to Parry’s 2.37. The market currently implies a 100% probability that the outcome will resolve to a specific winner, excluding the 50-50 cancellation clause, despite the odds suggesting Kalinskaya is the more likely advancee.
Historically, comparable second-round clashes at Wimbledon involving a lower-ranked underdog like Parry (ranked 49) against a higher-ranked opponent like Kalinskaya (ranked 20) often see the favourite win, yet the margin is frequently narrow. In their sole previous head-to-head encounter, Kalinskaya defeated Parry in straight sets but only by a three-game margin, indicating Parry’s capacity to make the contest competitive even when losing. This pattern of tight margins against top-tier opponents frames the current 100% resolution probability as a bet on the match occurring and completing, rather than a guarantee of Kalinskaya’s dominance.
Traders should monitor the live court conditions at Court 18 and any potential weather delays, as Wimbledon matches are highly sensitive to rain interruptions that could push the settlement beyond the seven-day cancellation window. The match is set to begin at 13:20 UTC, and any delay in the start time or early retirement due to injury would trigger the 50-50 resolution clause. Recent form data shows Parry lost to Madison Keys in March but beat Lucrezia Stefanini, while Kalinskaya’s consistency remains her primary asset; however, the on-chain settlement in USDC and the BTC/ETH macro tie-in mean that volatility in crypto funding rates could influence whale flows into this contract if the match outcome becomes uncertain before the settlement window closes on 8 July 2026.
Methodology
This page reads Wimbledon WTA: Diane Parry vs Anna Kalinskaya 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 alongside for venue context. 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
- 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 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.
- 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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