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
The Roland Garros WTA first-round encounter between Veronika Erjavec and Elena Rybakina is scheduled for 24 May 2026, with the market currently pricing Erjavec's advancement at zero probability. This reflects the substantial ranking and performance gap between the two players: Rybakina, a former world number four and Grand Slam finalist, faces an opponent ranked significantly lower with minimal WTA main-draw experience. The 0% implied probability suggests the market has priced this as a near-certainty for Rybakina, though such extreme probabilities warrant scrutiny given the inherent uncertainties in tennis.
Historical context shows that even heavily favoured players at Grand Slams occasionally suffer early exits due to form fluctuations, surface adjustment periods, or injury concerns. Rybakina's record on clay has been mixed relative to her hard-court dominance, and early-round matches can present tactical challenges if she approaches them with reduced intensity. Erjavec would need to execute a near-perfect performance and capitalise on any lapses, a scenario the market has essentially ruled out.
Traders should monitor Rybakina's preparation reports and any injury updates in the fortnight preceding the tournament, as these remain the primary catalysts that could shift the probability meaningfully. Court conditions and draw positioning closer to the event date may also influence match dynamics. The settlement window extends to 31 May, providing a seven-day buffer beyond the scheduled date for completion, though delays beyond that threshold would trigger a 50-50 resolution.
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.
- 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.
- 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.
Trade Roland Garros WTA: Veronika Erjavec vs Elena Rybakina on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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