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: Hamad Medjedovic vs Marco Trungelliti Match O/U 21.5 | 100% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Set 1 O/U 8.5 | 100% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Set 2 O/U 8.5 | 100% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Set Handicap +/-1.5 | 100% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Match O/U 22.5 | 100% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Set 2 O/U 9.5 | 100% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Set 1 O/U 9.5 | 100% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Match O/U 23.5 | 100% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Set 2 O/U 10.5 | 100% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Set 1 O/U 10.5 | 100% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti | 0% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Set 2 Winner | 0% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Set 1 Winner | 0% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Total Sets: O/U 2.5 | 0% |
| Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti Set Handicap +/-1.5 | 0% |
Market context
The Cincinnati Open, held annually at the Lindner Family Tennis Center in Ohio, will host a first-round match between Hamad Medjedovic and Marco Trungelliti on 14 August 2026. Medjedovic, a Serbian player ranked in the ATP's mid-tier, has competed regularly on the ATP Challenger circuit and occasionally qualifies for Masters 1000 events. Trungelliti, an Argentine with a similar career trajectory, has fluctuated between Challenger-level play and occasional ATP main-draw appearances. Both players are capable of producing competitive tennis but lack the ranking stability or recent form history that would generate substantial trading volume on major platforms.
The 0% implied probability reflects limited liquidity rather than certainty of cancellation. On Polymarket, where decimal odds display more transparently than implied percentages, such thin markets often show wide bid-ask spreads; Kalshi and Betfair would likely display similar disinterest given the players' profiles. The settlement window extends to 21 August, allowing seven days beyond the scheduled date—a standard buffer that reduces tie-resolution risk but does not eliminate it entirely. Traders should monitor ATP injury announcements and qualifying-round results in the week preceding the match, as either player's withdrawal would trigger the 50-50 resolution clause. Recent ATP communications regarding Cincinnati scheduling have been routine; no fixture changes or venue disruptions have been reported for 2026.
Methodology
This page compares Cincinnati Open: Hamad Medjedovic vs Marco Trungelliti 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
- 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.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Polymarket Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.
- 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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