Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
91% | 9% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
91% | 9% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Set 1 Winner | 91% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs | 75% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Set 2 Winner | 56% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Set Handicap +/-1.5 | 56% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Match O/U 21.5 | 52% |
| Completed Match | 50% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Set 2 O/U 8.5 | 50% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Set 1 O/U 8.5 | 50% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Set 2 O/U 9.5 | 50% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Set 1 O/U 9.5 | 50% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Set 2 O/U 10.5 | 50% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Set 1 O/U 10.5 | 50% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Match O/U 22.5 | 46% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Match O/U 23.5 | 43% |
| Cincinnati Open: Daniel Merida Aguilar vs Zizou Bergs Total Sets: O/U 2.5 | 41% |
Market context
The Cincinnati Open men's draw is set for mid-August 2026, with Merida Aguilar facing Bergs in what shapes as a competitive early-round encounter. Current odds favour Merida Aguilar at 55 per cent, reflecting modest confidence in the Spanish player's ability to progress. Both competitors operate in the ATP's mid-tier rankings, making this a genuine toss-up rather than a heavily seeded matchup.
Merida Aguilar's recent form and head-to-head record against Bergs provide the primary historical anchors for pricing. Players of similar ranking typically split outcomes when meeting at Masters 1000 events, particularly in opening rounds where surface conditions and match freshness matter considerably. The 55 per cent probability suggests the market perceives a marginal edge—likely rooted in Merida Aguilar's recent tournament results or superior hard-court record, though without confirmed ATP rankings shifts, this remains speculative positioning.
Traders should monitor official Cincinnati draw confirmations and any late withdrawals through the settlement window closing 23 August. Hard-court form updates in the week preceding 16 August will be critical; either player's injury status or unexpected ranking changes could shift the probability meaningfully. Weather delays are a secondary consideration given Cincinnati's August scheduling, though the seven-day resolution window provides some buffer. Watch for any ATP announcements regarding draw changes or scheduling adjustments that might affect match timing.
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 Prediction Today, 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.
UK Frequently Asked Questions
- 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.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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