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
| Completed Match | 100% YES | 0% NO |
| Nottingham Open: Jessica Bouzas Maneiro vs Emma Navarro Set 1 O/U 8.5 | 100% Over | 0% Under |
| Nottingham Open: Jessica Bouzas Maneiro vs Emma Navarro Set 2 O/U 9.5 | 0% Over | 100% Under |
| Nottingham Open: Jessica Bouzas Maneiro vs Emma Navarro | 0% Jessica Bouzas Maneiro | 100% Emma Navarro |
| Nottingham Open: Jessica Bouzas Maneiro vs Emma Navarro Total Sets: O/U 2.5 | 0% Over 2.5 | 100% Under 2.5 |
| Nottingham Open: Jessica Bouzas Maneiro vs Emma Navarro Match O/U 21.5 | 0% Over | 100% Under |
Market context
Jessica Bouzas Maneiro’s quarter-final against Emma Navarro in Nottingham is being priced as a Navarro-favoured live event, even though the crowd is already unanimous at 100% YES. Tennis.com’s pre-match projection has Navarro as a 63% winner, while Last Word on Sports also picks Navarro in three sets, so the market is not out of line with the broader analyst view, just more decisive than most published previews.[3][1]
The main reference point is that this is a grass-court quarter-final involving the highest remaining seed, which usually pulls attention towards the more established player, but Bouzas Maneiro has already shown she can upset top-tier opposition. The two were linked by Bouzas Maneiro’s straight-sets win over Navarro at Roland Garros 2025, a result that is useful for context but not a direct guide on grass, where movement, serve quality and shorter points can shift the edge quickly.[5][6]
For traders, the key catalysts are the official start time, court assignment and any weather-related disruption at Nottingham Tennis Centre, because the market has a 7-day completion rule and would fall to 50-50 if the match is not completed in that window.[2][7] Live scheduling feeds already show the fixture on 19 June, with Tennis.com and LiveScore both listing it as an upcoming quarter-final, so any delay, retirement or cancellation would matter more here than in a standard outright bet.[3][7]
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $228K.
Methodology
We track Nottingham Open: Jessica Bouzas Maneiro vs Emma Navarro 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.
- 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.
- What does it cost to trade on Best Prediction Markets?
- Zero. Best Prediction Markets routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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.
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