Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
22% | 78% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
22% | 78% | 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
Kokkinakis versus Atmane is scheduled for the opening round of Roland Garros in late May 2026, with the market currently pricing Kokkinakis at 76% implied probability on Polygon. The Australian, ranked in the mid-40s, faces a significantly lower-ranked opponent in Atmane, a French player competing primarily on the Challenger circuit. The 24% YES price reflects genuine uncertainty rather than a mismatch—clay-court form varies sharply between players, and first-round matches at majors frequently produce surprises when seeding gaps are substantial.
Kokkinakis has shown inconsistent results on clay historically, alternating between solid performances and early exits at Roland Garros. His record against lower-ranked players on the surface is mixed; whilst he should theoretically dominate, clay rewards consistency and movement patterns that don't always favour his game. Atmane, by contrast, has limited major-draw experience but has won multiple Challenger titles on clay in recent seasons, suggesting genuine competence on the surface rather than a complete mismatch. Similar scenarios—established players facing clay-specialist Challengers at Roland Garros—have produced upsets roughly 15–20% of the time.
Traders should monitor the draw confirmation and any late withdrawals closer to 24 May. Kokkinakis's recent form on clay in the weeks preceding Roland Garros will be the primary catalyst; a string of losses would narrow the probability gap. Weather conditions on match day matter significantly for clay—rain delays could shift momentum, though the settlement window extends to 31 May, providing buffer for rescheduling. Any injury announcements from either player would immediately reprrice the conditional tokens on Polygon.
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
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.
- 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 ATP: Thanasi Kokkinakis vs Terence Atmane on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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