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, the Hungarian player ranked outside the top 100, faces Swiss competitor Viktorija Golubic in an early-round Roland Garros WTA encounter scheduled for 24 May 2026. Golubic, a former top-70 player with clay-court experience, enters as the seeded favourite in this matchup. The 0% implied probability reflects either incomplete market liquidity at the time of snapshot or an expectation so heavily weighted toward Golubic that traders have not yet committed capital to back Udvardy's upset chances.
Historical precedent suggests early-round Roland Garros matches involving unseeded players from outside the top 100 settle with measurable variance. Udvardy's record on clay remains modest, though she has qualified for main-draw events at major tournaments. Golubic's consistency on slower surfaces—evidenced by multiple Grand Slam main-draw appearances—typically translates to shorter odds in prediction markets. The 0% reading should be interpreted as a reflection of market thinness rather than absolute certainty; even heavily favoured players occasionally lose first-round matches at Roland Garros.
Traders should monitor official Roland Garros scheduling confirmations and any late withdrawals or injury announcements in the week preceding 24 May. The settlement window closes 31 May at 09:00 UTC, providing a seven-day buffer for match completion. Court assignments and weather delays on clay courts can affect match timing; any postponement beyond 31 May without a result triggers the 50-50 resolution clause. Recent WTA injury reports and Golubic's performance in warm-up events on clay will inform whether the current probability floor remains justified.
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
- Where can I trade this market with the lowest fees?
- On PolyGram, 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?
- 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.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in 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
Live order book, 0% fees, USDC settlement in seconds.
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