Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| Iasi Open: Mayar Sherif vs Dalma Galfi | 100% |
| Completed Match | 100% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Set 1 Winner | 100% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Set 2 Winner | 100% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Set Handicap +/-1.5 | 100% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Match O/U 21.5 | 0% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Set 2 O/U 8.5 | 0% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Set 1 O/U 8.5 | 0% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Set 2 O/U 9.5 | 0% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Total Sets: O/U 2.5 | 0% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Match O/U 22.5 | 0% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Set 1 O/U 9.5 | 0% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Set 2 O/U 10.5 | 0% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Set Handicap +/-1.5 | 0% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Match O/U 23.5 | 0% |
| Iasi Open: Mayar Sherif vs Dalma Galfi Set 1 O/U 10.5 | 0% |
Market context
The Iasi Open in Romania will host a first-round encounter between Egyptian world No. 76 Mayar Sherif and Hungarian qualifier Dalma Galfi on 13 July 2026. The crowd-implied probability sits at 100% for Sherif, reflecting her ranking advantage and seeding status at a WTA 250 event. Sherif has competed regularly on the mid-tier circuit and holds a career record against lower-ranked opponents that typically favours her positioning. Galfi, ranked outside the top 100, qualified for the draw and represents the underdog profile in conventional terms.
Historical precedent on clay-court qualifiers suggests the ranking gap alone does not guarantee outcome certainty. Galfi's path through qualifying demonstrates competitive capacity, and Hungarian players have shown resilience on European clay surfaces in recent seasons. The 100% implied probability appears to discount the possibility of an upset or early retirement, both material risks in women's tennis at this level. Sherif's recent form and injury status heading into July will be critical; any fitness concerns or recent losses would typically narrow her advantage.
Traders should monitor official draw confirmations and any late withdrawals as the tournament approaches. Sherif's performance in the preceding weeks—particularly at any tune-up events—will signal her condition. Weather delays in Iasi could extend the settlement window, though the seven-day buffer provides reasonable protection. The extreme probability leaves minimal value for backing Sherif, whilst Galfi represents a contrarian angle only if fresh injury news emerges regarding the favourite.
Methodology
We track Iasi Open: Mayar Sherif vs Dalma Galfi across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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 Who Will Win 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.
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