Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
50% | 50% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
50% | 50% | 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
Polymarket is pricing Katarina Zavatska and Lucia Bronzetti almost exactly level in this Roland Garros qualifying tie, with the USDC contract on Polygon sitting at about 50% for each side. For traders, that midpoint implies the market has not firmly discounted either player’s route through the qualifying final, so the position is still being driven more by match-specific factors than a strong consensus view. Because settlement runs through conditional tokens, the outcome will hinge on who officially advances, while a no-contest, tie, or delay beyond seven days from the scheduled date would settle 50-50.
The even price looks consistent with the recent shape of the tie. Zavatska has already shown resilience in qualifying, coming through a three-set win over Daria Semenistaja to reach this round, while Bronzetti has also advanced from the same qualifying draw. The pair have met before, and the available previews describe the head-to-head as level at 1-1, which helps explain why neither side has pulled away in the market. In practice, that usually keeps the contract sensitive to small shifts in form, fitness and court conditions rather than broad ranking gaps alone.
The main catalysts are still administrative as much as sporting. Traders should watch for any official order-of-play changes, court assignments, warm-up reports and match-start confirmation, because the contract was originally scheduled for 22 May and any further disruption matters for settlement. A recent report from Mezha said Zavatska had reached the qualifying final and would face Bronzetti, while live listings from Sofascore and Flashscore indicated the match was on the day’s schedule. If the contest is played, any withdrawal before completion would be decisive; if it is pushed beyond the seven-day window without a winner, the market resolves at 50-50.
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.
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
- 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.
- 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 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 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, Qualification WTA: Katarina Zavatska … on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
Trade on PolyGram →