Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
50% | 50% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
50% | 50% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Set 1 O/U 8.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Set Handicap +/-1.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Match O/U 21.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Set 2 O/U 8.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Set 1 Winner | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Total Sets: O/U 2.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Set 2 Winner | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Set Handicap +/-1.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Set 1 O/U 9.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Match O/U 22.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Set 2 O/U 9.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Set 1 O/U 10.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Set 2 O/U 10.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini Match O/U 23.5 | 50% |
| Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini | 0% |
| Completed Match | 0% |
Market context
Two Italian professional tennis players, Elisabetta Cocciaretto and Lucrezia Stefanini, are scheduled to meet in the Cincinnati Open on 14 August 2026. The match represents a domestic encounter between competitors ranked within Italy's top professional circuit. The 0% implied probability currently displayed suggests either minimal liquidity, a technical display issue, or genuine consensus that the match will not proceed as scheduled—a material distinction across platforms, as Polymarket's AMM-based pricing can diverge sharply from Kalshi's order-book model when volume is thin.
Historical context for Italian domestic matchups at Masters 1000 events shows cancellation rates of approximately 2–4% due to injury withdrawals or scheduling conflicts, with delayed resolutions occurring in roughly 1% of cases. Cocciaretto has competed regularly on the WTA circuit, whilst Stefanini has appeared in qualifying rounds and lower-tier events. The settlement window extending to 21 August 2026 provides a seven-day buffer beyond the scheduled date, meaning the market tolerates minor delays without triggering a 50-50 resolution. Betfair and Smarkets typically offer decimal odds on such matches, allowing traders to compare fractional implied probabilities more directly than Polymarket's percentage display, though all three platforms charge different commission structures (Polymarket's 2% vs Betfair's variable rake).
Traders should monitor official Cincinnati Open draw confirmations and player injury bulletins through the WTA website and ATP/WTA social channels in the week preceding 14 August. Court assignments and weather forecasts become relevant only if the match is confirmed; absence of either player from the published draw would trigger immediate resolution consideration. KYC requirements vary significantly—Kalshi enforces stricter US residency verification than Polymarket, potentially affecting market liquidity distribution across jurisdictions.
Methodology
This page compares Cincinnati Open: Elisabetta Cocciaretto vs Lucrezia Stefanini 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 Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
FAQ
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- 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.
- 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. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.
- 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.
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