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
The Roland Garros qualifying match between Borna Gojo and Jurij Rodionov is trading at a full 100% Yes on Polymarket, with USDC locked into conditional tokens on Polygon and the market effectively assuming a completed result in favour of the named side. At that level, the contract is pricing no meaningful dispute over the winner, so any change in the underlying match status — completion, walkover, retirement, postponement, or cancellation — matters more than the tennis itself.
Recent form gives some context for why the market may be so one-sided, although it should be treated cautiously. Rodionov entered qualifying with a stronger clay record this year and had not dropped a set in his first two Paris matches, while Gojo had already conceded one set. The head-to-head page on the ATP Tour and live-tracking sites such as Sofascore and Flashscore are the practical references Polymarket users typically watch when a qualifier is still live or recently concluded, because settlement depends on the recorded outcome rather than pre-match expectations.
The main catalysts now are official score reporting, draw updates and any note of retirement or walkover from Roland Garros organisers. A recent TennisTonic preview on 22 May highlighted both players’ qualifying runs and the fact that Rodionov had been cleaner through the opening rounds, which helps explain the market’s current posture. For a Polymarket settlement, the key issue is whether the match was actually played to a recognised winner before the 29 May window closes; if not, the contract can still revert to 50-50 under the market rules.
Methodology
We track Roland Garros, Qualification ATP: Borna Gojo vs Jurij Rodionov 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
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.
- 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.
- 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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