Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cincinnati Open: Diane Parry vs Lois Boisson | 100% |
| Completed Match | 100% |
| Cincinnati Open: Diane Parry vs Lois Boisson Total Sets: O/U 2.5 | 100% |
| Cincinnati Open: Diane Parry vs Lois Boisson Set 2 Winner | 100% |
| Cincinnati Open: Diane Parry vs Lois Boisson Match O/U 21.5 | 100% |
| Cincinnati Open: Diane Parry vs Lois Boisson Set 1 O/U 8.5 | 100% |
| Cincinnati Open: Diane Parry vs Lois Boisson Set 2 O/U 8.5 | 100% |
| Cincinnati Open: Diane Parry vs Lois Boisson Match O/U 22.5 | 100% |
| Cincinnati Open: Diane Parry vs Lois Boisson Set 1 O/U 9.5 | 100% |
| Cincinnati Open: Diane Parry vs Lois Boisson Set 2 O/U 9.5 | 100% |
| Cincinnati Open: Diane Parry vs Lois Boisson Match O/U 23.5 | 100% |
| Cincinnati Open: Diane Parry vs Lois Boisson Set Handicap +/-1.5 | 0% |
| Cincinnati Open: Diane Parry vs Lois Boisson Set 1 Winner | 0% |
| Cincinnati Open: Diane Parry vs Lois Boisson Set Handicap +/-1.5 | 0% |
| Cincinnati Open: Diane Parry vs Lois Boisson Set 1 O/U 10.5 | 0% |
| Cincinnati Open: Diane Parry vs Lois Boisson Set 2 O/U 10.5 | 0% |
Market context
The Cincinnati Open women's draw will feature a first-round matchup between French player Diane Parry and fellow Frenchwoman Lois Boisson on 17 August 2026. Polymarket currently prices this contract at 100% YES, meaning traders are assigning zero probability to a Boisson victory or match cancellation. This extreme confidence in Parry's advancement reflects her ranking advantage and recent form, though the settlement window extends to 24 August to account for scheduling delays typical of hard-court tournaments.
Parry enters as the higher-ranked player with established WTA experience, whilst Boisson remains in the earlier stages of her professional career. Historical precedent suggests that seeded or significantly ranked players advance in early rounds roughly 70–80% of the time at Masters 1000 events, yet the 100% market price indicates traders are pricing in either a substantial gap between these two competitors or confidence in match completion without upset. The all-French pairing also reduces withdrawal risk, as both players are likely to be present in Cincinnati.
Key variables for settlement include weather delays common to August hard-court tournaments and any last-minute injury announcements. The WTA typically confirms draw details and player status 48 hours before competition begins. Traders should monitor official Cincinnati Open communications and both players' social media for withdrawal notices, which would trigger the 50-50 resolution clause if announced before the scheduled start time. The seven-day grace period built into the settlement window provides substantial buffer for rescheduling without forcing a tie resolution.
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 Polymarket Qué Es, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
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 Polymarket Qué Es. 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.
- 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.
- 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 Pronóstico: Cincinnati Open: Diane Parry vs Lois Boi… on Polymarket Qué Es
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