Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
BTC Prediction Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on BTC Prediction → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on BTC Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on BTC Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on BTC Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on BTC Prediction → |
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 BTC Prediction.
Active sub-markets
Market context
Jil Teichmann faces Magdalena Frech in the first round of Roland Garros women's singles, scheduled for 27 May 2026. The Swiss player enters as the clear favourite at 86% implied probability, reflecting her higher ranking and recent form on clay courts. Frech, the Polish qualifier or lower-seeded entrant, would need to upset a player with superior surface credentials to advance.
Teichmann's clay-court record and seeding position anchor the current probability skew. She has consistently performed at Roland Garros in recent seasons, reaching later rounds and demonstrating comfort on the surface. Frech, whilst capable on clay, lacks the same tournament pedigree at this level. Historical matchups between players of differing seeding tiers at Grand Slams typically see the higher-ranked player advance in roughly 80–90% of cases, which aligns closely with the current market assessment.
The settlement window closes 3 June 2026 at 09:00 UTC, allowing seven days for the match to complete. Traders should monitor the official Roland Garros draw confirmation and any weather disruptions to the Paris schedule, as delays beyond the settlement window trigger a 50-50 resolution. Court assignments and match timing may shift; the scheduled 05:00 ET start suggests an early-morning slot that could be rescheduled. Injury withdrawals or late scratches remain possible until play begins. The WTA's official website and ATP/WTA tour schedules will confirm fixture status closer to the event date.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
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 does it cost to trade on BTC Prediction?
- Zero. BTC Prediction 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, BTC Prediction 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 WTA: Jil Teichmann vs Magdalena Frech on BTC Prediction
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