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
Michael Zheng and Dino Prizmic are scheduled to meet in the opening round of Roland Garros ATP competition on 24 May 2026. The 0% implied probability for Zheng reflects either extreme confidence in Prizmic's superiority or, more likely, minimal trading activity and low liquidity in this particular matchup. Settlement closes 31 May 2026, allowing a week's buffer for scheduling delays or incomplete matches before forced resolution.
Both players operate in the lower tiers of professional tennis, where historical precedent shows that seeding, ranking points, and recent form carry outsized weight in early-round matchups. Comparable first-round encounters at Grand Slams between unranked or lowly-ranked opponents typically resolve according to ATP rankings and recent tournament results rather than narrative factors. The absence of meaningful probability assignment to Zheng suggests either that Prizmic holds a clear ranking advantage or that the market has simply not attracted sufficient attention to establish a genuine consensus line.
Traders should monitor the official Roland Garros draw confirmation and any last-minute withdrawals or injury announcements in the fortnight before the match. Recent ATP Challenger results for both players, published through the ATP website, will provide the most reliable form guide. Court surface preference and head-to-head records, if they exist, merit checking against the ATP database. Any shift in the odds should be treated cautiously given the thin liquidity typical of lower-seeded matchups at majors; a single large bet can distort the probability significantly without reflecting genuine edge.
Methodology
We track Roland Garros ATP: Michael Zheng vs Dino Prizmic 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
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
- 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.
- 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.
Trade Roland Garros ATP: Michael Zheng vs Dino Prizmic on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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