Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Prediction Today Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Prediction Today → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Prediction Today → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Prediction Today → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Prediction Today → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Prediction Today → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Prediction Today.
Active sub-markets
Market context
Dalma Galfi and Mayar Sherif are scheduled to meet in the first or second round of Roland Garros on 25 May 2026. The 0% implied probability reflects either minimal trading activity on this specific matchup or a technical artefact of low liquidity rather than genuine market conviction. Both players compete regularly on the WTA circuit, though neither ranks among the tournament's seeded contenders, making this a lower-profile encounter unlikely to draw heavy early wagering.
Galfi, a Hungarian player ranked outside the top 100 in recent seasons, has shown inconsistent form on clay courts, her preferred surface. Sherif, the Egyptian competitor, has built her career primarily on hard courts and grass, with clay representing a weaker segment of her game. Historical precedent suggests that when two players of comparable ranking meet at Grand Slams, the clay-court specialist typically holds marginal advantage at Roland Garros, though individual form in the weeks preceding the tournament often overrides surface preference.
Traders should monitor both players' performances at the French Open warm-up events in May—particularly the WTA 1000 events at Madrid and Rome—as these will provide the most recent form indicators before the draw is released. Injury reports and withdrawal announcements from other tournaments will also signal fitness levels. The official Roland Garros draw, typically published approximately one week before the tournament begins, will confirm whether this matchup materialises as scheduled or is altered by seeding or withdrawals.
Methodology
This page is a comparison snapshot: one live quote (Polymarket), 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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Where can I trade this market with the lowest fees?
- On Prediction Today, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Prediction Today is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- What does it cost to trade on Prediction Today?
- Zero. Prediction Today routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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.
- 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.
Trade Roland Garros WTA: Dalma Galfi vs Mayar Sherif on Prediction Today
Live order book, 0% fees, USDC settlement in seconds.
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