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
Kaitlin Quevedo faces Leolia Jeanjean in the opening round of Roland Garros women's singles, scheduled for 25 May 2026. The market currently reflects 100% confidence in a match occurring, though the settlement window extends to 1 June, allowing a seven-day grace period before resolution defaults to 50-50 if play is delayed or incomplete.
Jeanjean, the French qualifier, carries home-court advantage at Roland Garros and has demonstrated capacity to trouble higher-ranked opponents on clay. Quevedo, the American, enters as the likely seeded player given recent ranking trajectories. Historical precedent suggests opening-round matches between unseeded French players and American seeds at Roland Garros resolve with the seeded player advancing roughly 65-70% of the time, though clay-court familiarity and crowd support can compress that margin. The 100% probability assigned here suggests the market is pricing near-certainty that the match will be played rather than confidence in either player's victory.
Traders should monitor withdrawal announcements through late May, as injury scratches occasionally reshape early-round matchups. Weather disruptions at Roland Garros in late May are statistically low but not negligible; rain delays occasionally push matches beyond the scheduled window. Recent WTA scheduling patterns show Roland Garros organisers typically complete first-round matches within 48 hours of the initial date unless weather intervenes significantly. The settlement mechanics mean that even a one-week postponement without completion triggers the 50-50 default, making fixture integrity a material consideration rather than a minor administrative detail.
Methodology
We track Roland Garros WTA: Kaitlin Quevedo vs Leolia Jeanjean 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 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 WTA: Kaitlin Quevedo vs Leolia Jeanjean on PolyGram
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