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% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Set 1 O/U 8.5 | 100% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Set 1 O/U 9.5 | 100% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Set Handicap +/-1.5 | 100% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova | 0% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Set 1 Winner | 0% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Set 2 Winner | 0% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Set 2 O/U 8.5 | 0% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Match O/U 21.5 | 0% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Set Handicap +/-1.5 | 0% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Total Sets: O/U 2.5 | 0% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Set 2 O/U 9.5 | 0% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Match O/U 22.5 | 0% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Set 1 O/U 10.5 | 0% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Set 2 O/U 10.5 | 0% |
| National Bank Open: Gabriela Ruse vs Anastasia Potapova Match O/U 23.5 | 0% |
Market context
Gabriela Ruse and Anastasia Potapova are due to play in the National Bank Open, a hard-court WTA 1000 event in Toronto, with market settlement tied to whether one of them advances. The live tennis listings show Potapova as the higher-ranked player, around WTA No. 27 versus Ruse around No. 75-77, and the matchup is listed as their first head-to-head meeting on the main tour.[4][5][12]
The 0% crowd-implied YES price is most naturally read as a stale or placeholder line rather than a true match assessment, because comparable pre-match boards have still given Potapova a clear edge. Tennis.com had Potapova as a 59% projected winner against Ruse at publication, while other live odds pages and stats feeds also frame her as the more accomplished hard-court player, with Ruse’s recent results against top-30 opposition on this surface notably weaker.[4][5] Potapova’s broader WTA record and title count also point to the higher baseline, even though her National Bank Open history has been modest.[16][5]
For traders, the key catalysts are the official order of play, any late court reshuffle, and whether the match actually starts before the settlement window closes; if it is not played at all or is pushed beyond seven days, the contract can resolve 50-50 under the rules. Because this is an on-chain market settled in USDC, the practical risk is not just who wins but whether the event is completed cleanly within the stated timing. Broader crypto conditions matter mainly at the margin: sharp moves in BTC or ETH, funding-rate swings, or exchange risk appetite can affect liquidity and spreads, but they do not change the tennis result.
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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