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: Anna Blinkova vs Maria Lourdes Carle | 100% |
| Completed Match | 100% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Set 2 Winner | 100% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Set 1 O/U 8.5 | 100% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Set 1 Winner | 100% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Match O/U 21.5 | 100% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Set Handicap +/-1.5 | 100% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Set 1 O/U 9.5 | 100% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Set 2 O/U 8.5 | 100% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Set 2 O/U 9.5 | 100% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Match O/U 22.5 | 100% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Set 2 O/U 10.5 | 100% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Total Sets: O/U 2.5 | 0% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Set Handicap +/-1.5 | 0% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Set 1 O/U 10.5 | 0% |
| Contrexeville: Anna Blinkova vs Maria Lourdes Carle Match O/U 23.5 | 0% |
Market context
Anna Blinkova faces Maria Lourdes Carle in the second round of the WTA 125K at Contrexeville today, with the match scheduled to begin at 8:00am ET. On Polymarket, this contract currently trades at 100% YES for Blinkova advancing, a price that starkly contradicts the 60% projected win probability shown by major tennis data aggregators like Tennis.com[1]. This divergence mirrors historical cases where conditional token markets on Polygon, settled in USDC, overreact to early seeding information before live performance data corrects the price; traders often see similar 100% pricing collapse within hours once the first serve is struck, as the market rapidly incorporates the on-chain mechanics of conditional tokens that resolve only upon a definitive winner.
Key catalysts for traders include the official start time confirmation and any weather delays at Court Central in Contrexeville, France[3]. While Blinkova holds a statistical edge, the 40% chance assigned to Carle by analysts suggests the match is not a guaranteed walkover[1]. Traders should monitor real-time updates from FanDuel or Bettingexpert for any shifts in live odds that might signal an unexpected Carle breakthrough, as these external bookmakers often price in fatigue or surface conditions faster than the prediction market[5][6]. The settlement window ending 15 July 2026 allows ample time for the market to correct if the match begins but is not completed, triggering the 50-50 resolution clause if no winner is determined within seven days.
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
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Trade Contrexeville: Anna Blinkova vs Maria Lourdes Carle on Kalshi UK
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