Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
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 PolyGram.
Active sub-markets
Market context
Panna Udvardy and Viktorija Golubic are scheduled to meet in the first or early rounds of Roland Garros in late May 2026, with the match originally set for 5:00 AM ET on 24 May. The Polymarket contract currently reflects zero probability for Udvardy's advancement, suggesting traders are either heavily favouring Golubic or treating the match as highly uncertain given the early scheduling window and potential for fixture changes. Settlement hinges on a clear winner within seven days of the scheduled date; any cancellation, tie, or extended delay beyond that window triggers a 50-50 split of the conditional tokens on Polygon.
Golubic, a Swiss player ranked in the mid-200s, has competed consistently on the WTA circuit but lacks major tournament depth. Udvardy, a Hungarian qualifier, similarly operates outside the top 100. Historical precedent from early-round Roland Garros matches between players of comparable ranking shows extreme volatility in market pricing, particularly when one player carries recent clay-court form or has prior head-to-head records. The 0% probability assigned to Udvardy suggests either incomplete information on the trader side or a strong consensus around Golubic's clay credentials, though such extreme pricing in lower-tier WTA matches often reflects thin liquidity rather than genuine predictive confidence.
Traders should monitor official Roland Garros draw confirmations and any injury announcements in the fortnight before 24 May, as early-round withdrawals are common. Court assignments and weather conditions on the day will matter significantly for a match between unseeded players. The early morning ET slot (13:00 Paris time) may also affect betting patterns as European traders engage with the market closer to match time.
Methodology
We track Roland Garros WTA: Panna Udvardy vs Viktorija Golubic on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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.
FAQ
- Is this market available outside the US?
- PolyGram 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's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does it cost to trade on PolyGram?
- Zero. PolyGram 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: Panna Udvardy vs Viktorija Golubic on PolyGram
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