Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva | 100% |
| Completed Match | 100% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Set 2 Winner | 100% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Set Handicap +/-1.5 | 100% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Set 1 Winner | 100% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Set 1 O/U 8.5 | 0% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Total Sets: O/U 2.5 | 0% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Set 2 O/U 8.5 | 0% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Match O/U 21.5 | 0% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Set 1 O/U 9.5 | 0% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Set 2 O/U 9.5 | 0% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Match O/U 22.5 | 0% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Set 1 O/U 10.5 | 0% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Set Handicap +/-1.5 | 0% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Set 2 O/U 10.5 | 0% |
| Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva Match O/U 23.5 | 0% |
Market context
Market consensus: 100% chance of contrexeville: jeline vandromme vs oksana selekhmeteva. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Jeline Vandromme and Oksana Selekhmeteva in the Contrexeville, originally scheduled for July 9, 2026 at 4:00AM ET. This market will …
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Contrexeville: Jeline Vandromme vs Oksana Selekhmeteva on Kalshi UK
Live order book, 0% fees, USDC settlement in seconds.
Open live market →