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 |
|---|---|
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Set 1 Winner | 100% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Set 1 O/U 8.5 | 100% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva | 86% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Match O/U 21.5 | 75% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Total Sets: O/U 2.5 | 51% |
| Completed Match | 50% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Set Handicap +/-1.5 | 50% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Match O/U 22.5 | 50% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Match O/U 23.5 | 50% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Set 2 Winner | 0% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Set 2 O/U 8.5 | 0% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Set 1 O/U 9.5 | 0% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Set 2 O/U 9.5 | 0% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Set 1 O/U 10.5 | 0% |
| The Memphis Classic, Qualification: Kristina Liutova vs Maria Kozyreva Set 2 O/U 10.5 | 0% |
Market context
Kristina Liutova is the market favourite against Maria Kozyreva in the Memphis Classic qualifying draw, with the crowd pricing Liutova at about 86% and Kalshi showing 87% on the same matchup[3]. That kind of skew usually implies the market expects the favourite either to be materially stronger on form or to have a favourable scheduling edge, while still leaving a small but real path for an upset, retirement, or cancellation to matter because settlement depends on a completed winner or, failing that, the contract’s fallback rules[2][4].
Comparable market behaviour suggests the key question is not just who is better on paper, but whether the match is actually played to a decisive finish. Robinhood’s event rules note that pre-start cancellations, injury walkovers and similar non-starters can trigger fair-price or tie-style treatment, while Polymarket’s tennis wording also makes clear that a match begun but not completed can still resolve by advancement or, in some cases, 50-50 depending on the outcome[2][4]. For a high-probability favourite, that means the main pricing risk is usually operational rather than purely sporting.
Traders should watch the tournament schedule, any updated order-of-play posts, and late withdrawal notices, because qualifying rounds are especially prone to same-day changes that can flip a live event into a settlement exception[2][4]. There is no obvious BTC or ETH-specific macro linkage to this individual tennis contract, but the market still settles in USDC-like on-chain rails, so broader crypto volatility matters more for execution quality and liquidity than for the match outcome itself. Kalshi’s listed price near 87% is broadly consistent with the crowd number, suggesting no major divergence in venue expectations at present[3].
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
- 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 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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