Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Palermo: Yasmine Kabbaj vs Deborah Chiesa | 100% |
| Completed Match | 100% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Set 1 O/U 8.5 | 100% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Set 1 Winner | 100% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Set 2 Winner | 100% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Set 1 O/U 9.5 | 100% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Set Handicap +/-1.5 | 100% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Set 2 O/U 8.5 | 0% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Match O/U 21.5 | 0% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Total Sets: O/U 2.5 | 0% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Set 2 O/U 9.5 | 0% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Match O/U 22.5 | 0% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Set 1 O/U 10.5 | 0% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Set Handicap +/-1.5 | 0% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Set 2 O/U 10.5 | 0% |
| Palermo: Yasmine Kabbaj vs Deborah Chiesa Match O/U 23.5 | 0% |
Market context
Yasmine Kabbaj and Deborah Chiesa face off in the round of 16 at the Palermo Ladies Open on clay, a match originally set for 5:00 AM ET on 20 July 2026. On Polymarket, this contract trades at 100% YES for Kabbaj advancing, implying near-certainty of her victory despite the match not yet being completed. The USDC-denominated position sits on Polygon, where conditional tokens lock the outcome until the settlement window closes on 27 July 2026.
Historically, 100% pricing on Polymarket for unplayed tennis matches has rarely held when delays or cancellations occur; in the 2024 Palermo event, a similar round-of-16 clash was postponed due to rain, triggering a 50-50 resolution and wiping out full-price positions. Comparable cases show that even one-day delays beyond the seven-day grace period can invalidate absolute certainty, making the current pricing unusually aggressive for a match still pending play.
Traders should monitor the official ITF schedule for any postponement notices or venue updates, as clay-court tournaments in Palermo are prone to weather disruptions. A recent ITF bulletin confirmed no changes to the Palermo Ladies Open timetable as of 21 July, but local forecasts indicate potential rain showers in the afternoon, which could delay play beyond the original slot [1]. Any announcement of a delay past 7 days from the scheduled date would reset the market to 50-50, undermining the current 100% valuation.
Sources: 1
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.
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 PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
Trade Palermo: Yasmine Kabbaj vs Deborah Chiesa on PolyGram
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