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
Tommy Paul faces Rinky Hijikata in the opening round of Roland Garros on 24 May 2026. The market prices Paul's advancement at 94% implied probability, with Hijikata offered at 6%, reflecting a substantial favourite-underdog split. Paul is ranked considerably higher and has established himself as a consistent performer on clay, whilst Hijikata remains an emerging talent with limited Grand Slam pedigree on the surface.
Historical matchups between established top-100 players and rising challengers at Roland Garros show that seeding and ranking gaps typically correlate with outcome probability, though clay-court specialists can compress those margins. Hijikata's record against higher-ranked opponents on slower surfaces remains sparse; he has yet to post a significant clay-court scalp at tour level. Paul's clay record, whilst not elite, demonstrates comfort in extended baseline rallies—the currency of Roland Garros tennis. The 6% probability assigned to Hijikata reflects consensus expectation rather than outlier positioning.
Traders should monitor fitness bulletins for both players in the week preceding the match, particularly any reports of injury or illness affecting either camp. Paul's recent tournament results and seeding position will confirm his form trajectory into the tournament. Hijikata's qualifying performance, if he enters via that route, would signal his physical and mental state. Weather conditions on the scheduled date—clay courts play markedly differently in rain or cold—could introduce volatility, though the settlement window extends seven days beyond the original date, providing buffer for rescheduling. No recent news suggests complications to the fixture itself.
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
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
- 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: Rinky Hijikata vs Tommy Paul on PolyGram
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