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
| Nottingham Open: Maya Joint vs Yulia Starodubtseva Match O/U 21.5 | 100% Over | 0% Under |
| Nottingham Open: Maya Joint vs Yulia Starodubtseva Match O/U 22.5 | 100% Over | 0% Under |
| Nottingham Open: Maya Joint vs Yulia Starodubtseva Match O/U 23.5 | 100% Over | 0% Under |
| Nottingham Open: Maya Joint vs Yulia Starodubtseva Set 2 Winner | 0% Joint | 100% Starodubtseva |
| Nottingham Open: Maya Joint vs Yulia Starodubtseva Set 2 O/U 9.5 | 100% Over | 0% Under |
| Nottingham Open: Maya Joint vs Yulia Starodubtseva Set 2 O/U 10.5 | 100% Over | 0% Under |
Market context
Maya Joint and Yulia Starodubtseva are scheduled to compete in the opening rounds of the Nottingham Open, a grass-court WTA 250 event held annually in the UK. The match was originally set for 15 June 2026 at 5:00 AM ET, though grass-court tournaments frequently experience weather delays and schedule adjustments. The 100% implied probability across prediction markets suggests near-certainty that one player will advance, though this reflects the binary nature of the settlement criteria rather than confidence in match completion at the scheduled time.
Grass-court tournaments present distinct scheduling volatility compared to hard-court events. Rain interruptions at Nottingham have historically extended matches across multiple days, and the seven-day grace period built into the market's resolution terms acknowledges this pattern. Joint and Starodubtseva's seeding, recent form, and injury status remain the primary variables affecting match outcome probability once play begins. The current 100% YES reading indicates traders are pricing near-zero probability of cancellation, tie outcomes, or indefinite postponement beyond the resolution window.
Traders should monitor official Nottingham Open draw announcements and weather forecasts in the week preceding 15 June. Any withdrawal announcements or scheduling changes from the WTA would shift the cancellation risk premium. Recent grass-court tournaments have seen minimal fixture cancellations despite weather, suggesting the market's confidence in match completion is historically grounded. Sportsbook moneyline odds on the individual match outcome, once released, will provide the clearest signal on which player is favoured to advance, distinguishing outcome probability from match-completion probability.
Methodology
We track Nottingham Open: Maya Joint vs Yulia Starodubtseva 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
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
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.
- 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, Best Prediction Markets triggers a quick verification flow that finishes in minutes.
Trade Nottingham Open: Maya Joint vs Yulia Starodubtseva on Best Prediction Markets
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