Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Set 2 Winner | 100% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Match O/U 21.5 | 100% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Total Sets: O/U 2.5 | 100% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda | 0% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Set Handicap +/-1.5 | 0% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Set 1 O/U 8.5 | 0% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Set 1 Winner | 0% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Set 2 O/U 8.5 | 0% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Set 1 O/U 9.5 | 0% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Match O/U 22.5 | 0% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Set 2 O/U 9.5 | 0% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Set 1 O/U 10.5 | 0% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Match O/U 23.5 | 0% |
| Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda Set 2 O/U 10.5 | 0% |
Market context
Giovanni Mpetshi Perricard, the French qualifier ranked outside the top 100, faces American Trevor Svajda in the opening round of Cincinnati Open qualifying on 11 August 2026. The winner advances to the main draw of the ATP 1000 event. Both players are competing for one of the limited qualifying spots into a prestigious hard-court tournament that typically draws top-50 talent, making this a high-stakes qualifier despite the players' current rankings.
The 0% implied probability across Polymarket reflects genuine uncertainty about match availability rather than a decisive market view. Qualifying matches at major tournaments frequently experience scheduling delays, weather interruptions, or cancellations—particularly in August when Cincinnati heat and humidity can force rescheduling. The settlement window extends to 18 August, allowing seven days for the match to conclude; however, if either player withdraws or the match is postponed beyond that window without resolution, the market settles 50-50. This tie-resolution mechanism differs from Kalshi's binary structure, which typically requires explicit match completion, and Betfair's lay-betting model, which handles contingencies through different odds adjustments. Smarkets' fractional odds display would show this market's current state differently, though all platforms face identical underlying event risk.
Traders should monitor ATP injury reports and qualifying draw confirmations released in early August, as late withdrawals reshape qualifying brackets substantially. Perricard's recent form on hard courts and Svajda's consistency in qualifying rounds will influence pre-match odds shifts once the draw is officially published. Weather forecasts for Cincinnati during the qualifying window merit attention, given the settlement clause's sensitivity to scheduling delays.
Methodology
This page compares Cincinnati Open, Qualification: Giovanni Mpetshi Perricard vs Trevor Svajda specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Alternative, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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