Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Best Prediction Markets Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Best Prediction Markets → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Best Prediction Markets → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Best Prediction Markets → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Best Prediction Markets → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Best Prediction Markets → |
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 Best Prediction Markets.
Active sub-markets
| Bad Homburg Open: Katie Boulter vs Leylah Fernandez Set 1 O/U 9.5 | 100% Over | 0% Under |
| Bad Homburg Open: Katie Boulter vs Leylah Fernandez Set 1 O/U 10.5 | 100% Over | 0% Under |
| Bad Homburg Open: Katie Boulter vs Leylah Fernandez Total Sets: O/U 2.5 | 100% Over 2.5 | 0% Under 2.5 |
| Bad Homburg Open: Katie Boulter vs Leylah Fernandez Match O/U 21.5 | 100% Over | 0% Under |
| Bad Homburg Open: Katie Boulter vs Leylah Fernandez Match O/U 22.5 | 100% Over | 0% Under |
| Bad Homburg Open: Katie Boulter vs Leylah Fernandez Match O/U 23.5 | 100% Over | 0% Under |
Market context
Based on real-money crowd forecasting, bad homburg open: katie boulter vs leylah fernandez stands at 100% likelihood according to current market consensus. This market refers to the tennis match between Katie Boulter and Leylah Fernandez in the Bad Homburg Open, originally scheduled for June 21, 2026 at 5:00AM ET. This market will re…
Methodology
We track Bad Homburg Open: Katie Boulter vs Leylah Fernandez 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
- Is this market available outside the US?
- Best Prediction Markets 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'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, Best Prediction Markets 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 Bad Homburg Open: Katie Boulter vs Leylah Fernandez on Best Prediction Markets
Live order book, 0% fees, USDC settlement in seconds.
Trade on Best Prediction Markets →