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 | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cincinnati Open: Caty McNally vs McCartney Kessler | 100% |
| Completed Match | 100% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Set 1 O/U 8.5 | 100% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Set 1 Winner | 100% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Set 2 Winner | 100% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Set Handicap +/-1.5 | 100% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Set 2 O/U 8.5 | 100% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Set 2 O/U 9.5 | 100% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Total Sets: O/U 2.5 | 0% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Match O/U 21.5 | 0% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Match O/U 22.5 | 0% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Set 1 O/U 9.5 | 0% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Set 1 O/U 10.5 | 0% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Match O/U 23.5 | 0% |
| Cincinnati Open: Caty McNally vs McCartney Kessler Set 2 O/U 10.5 | 0% |
Market context
Based on real-money crowd forecasting, cincinnati open: caty mcnally vs mccartney kessler stands at 100% likelihood according to current market consensus. This market refers to the tennis match between Caty McNally and McCartney Kessler in the Cincinnati Open, originally scheduled for August 13, 2026 at 10:00AM ET. This market will …
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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- 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 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 PolyGram 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 Cincinnati Open: Caty McNally vs McCartney Kessler on PolyGram
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