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
Aleksandar Kovacevic faces Rafael Jodar in the opening rounds of Roland Garros in May 2026, with the American currently priced at zero per cent implied probability despite holding a significant ranking advantage. Kovacevic, ranked in the low-to-mid 80s on the ATP tour, enters as the clear favourite against Jodar, whose ranking sits outside the top 150. The 0% pricing reflects either extreme confidence in Jodar's chances or a technical artefact of the market's early formation, as such extremes rarely persist once meaningful volume arrives.
Historical context suggests that ranking-based matchups at Grand Slams rarely produce the upsets implied by zero-probability pricing. Kovacevic has competed regularly in ATP main draws and qualifiers, whilst Jodar's recent record shows inconsistent results at lower-tier events. The gap in tour experience and surface-specific preparation typically favours the higher-ranked player, particularly on clay where technique and consistency compound advantages. Markets pricing a top-100 player at zero against a fringe competitor often correct sharply once trading deepens.
The settlement window extends to 31 May, providing a seven-day buffer beyond the scheduled 24 May start. Traders should monitor draw confirmations and any late withdrawals, which occasionally reshape opening-round matchups at Roland Garros. Weather delays on clay courts are routine at the French Open, though unlikely to trigger the tie-resolution clause unless the match remains unfinished beyond 31 May. Current pricing leaves minimal room for Kovacevic value, though the extreme probability may reflect genuine uncertainty about participation rather than competitive assessment.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.
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
- 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.
- 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.
Trade Roland Garros ATP: Aleksandar Kovacevic vs Rafael Jodar on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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