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 |
|---|---|
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Set 1 O/U 8.5 | 100% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Set 1 O/U 9.5 | 100% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Set Handicap +/-1.5 | 80% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Set 2 O/U 8.5 | 51% |
| Completed Match | 50% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Match O/U 22.5 | 50% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Set 2 O/U 9.5 | 50% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Set 2 O/U 10.5 | 50% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Match O/U 23.5 | 50% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Match O/U 21.5 | 45% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Total Sets: O/U 2.5 | 17% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Set 2 Winner | 16% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson | 7% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Set Handicap +/-1.5 | 5% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Set 1 Winner | 0% |
| Mubadala Citi DC Open: Elisabetta Cocciaretto vs Clara Tauson Set 1 O/U 10.5 | 0% |
Market context
Elisabetta Cocciaretto and Clara Tauson are scheduled to meet in the opening rounds of the Mubadala Citi DC Open, a WTA 500 event in Washington DC, on 27 July 2026. The current 7% implied probability for Cocciaretto reflects a significant underdog positioning, despite her ranking and recent form trajectories. The match sits within a broader WTA summer hardcourt swing where seeding, injury status, and court-specific performance patterns carry material weight in outcome determination.
Cocciaretto's historical record against comparable opponents and Tauson's recent tournament results provide the baseline for assessing whether the 7% odds undervalue or overvalue the Italian's chances. Tauson, a Danish player with steady WTA progression, has shown inconsistency in early-round matchups against unseeded or lower-ranked opponents, whilst Cocciaretto has demonstrated improved consistency on hard courts through 2025 and early 2026. Comparable first-round encounters at DC Open level typically see tighter probability distributions unless one player carries significant ranking advantage or recent injury concerns.
Traders should monitor official WTA injury reports and practice court activity in the week preceding 27 July, as both players' fitness status and court preparation directly influence match outcome. Schedule delays or weather disruptions could trigger the 50-50 settlement clause if the match extends beyond seven days without completion. USDC settlement on btc-prediction.bet will execute upon confirmed match result from official WTA records, with resolution occurring by the 3 August deadline.
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.
- 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.
- 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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