Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
100% | 0% | 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
Casper Ruud faces Roman Safiullin in the opening round of Roland Garros in May 2026, with the Polymarket contract currently pricing Ruud's advancement at 89% (USDC settlement on Polygon). The Norwegian, seeded in the top ten at most majors, enters as the clear favourite despite Safiullin's recent improvements on clay courts. The match is scheduled for 5:00 AM ET on 25 May, an early slot that typically favours established players with deeper match fitness and experience managing fatigue across tournament runs.
Ruud's clay-court pedigree provides the foundation for this pricing. He reached the French Open final in 2022 and has consistently performed well at Roland Garros, whilst Safiullin, a Russian competing under neutral status, remains outside the top 50 rankings. Historical first-round matchups between seeded players and unranked or lower-ranked opponents at Grand Slams show roughly 85–92% advancement rates for the higher-ranked player, particularly when that player specialises on the surface in question. Ruud's record against lower-ranked clay specialists supports the current probability without suggesting mispricing.
Traders should monitor the official Roland Garros draw confirmation and any late injury announcements from either camp in the week preceding the match. Weather disruptions at Roland Garros occasionally force schedule shifts; the settlement window extends to 1 June, providing a seven-day buffer for delays. Recent ATP rankings updates and Ruud's performance at the Madrid and Rome Masters (held in May) will offer the most current form signals. Any withdrawal by either player would trigger the 50–50 resolution clause, though such outcomes remain statistically rare for seeded players in early rounds.
Methodology
We track Roland Garros ATP: Casper Ruud vs Roman Safiullin 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
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
- 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.
- 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?
- 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.
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