Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Sport Prediction Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Sport Prediction → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Sport Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Sport Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Sport Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Sport 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 Sport Prediction.
Active sub-markets
| Nottingham Open: Yulia Starodubtseva vs Emma Navarro Match O/U 21.5 | 100% Over | 0% Under |
| Nottingham Open: Yulia Starodubtseva vs Emma Navarro Set Handicap +/-1.5 | 0% Navarro | 100% Starodubtseva |
| Nottingham Open: Yulia Starodubtseva vs Emma Navarro Match O/U 23.5 | 100% Over | 0% Under |
| Nottingham Open: Yulia Starodubtseva vs Emma Navarro Set 1 O/U 8.5 | 100% Over | 0% Under |
| Nottingham Open: Yulia Starodubtseva vs Emma Navarro Set 1 O/U 9.5 | 100% Over | 0% Under |
| Nottingham Open: Yulia Starodubtseva vs Emma Navarro Set 1 O/U 10.5 | 0% Over | 100% Under |
Market context
Yulia Starodubtseva and Emma Navarro are scheduled to meet in the opening rounds of the Nottingham Open grass-court tournament on 17 June 2026. The match represents a significant disparity in ranking and experience: Navarro, an American ranked in the top 50, faces a qualifier or lower-ranked opponent in Starodubtseva, a Russian player competing primarily on secondary tours. The grass surface at Nottingham traditionally favours serve-dominant players and those with prior experience on quick courts, a factor that typically advantages higher-ranked competitors with established grass-court records.
The 100% crowd probability reflects Navarro's substantial ranking advantage and the structural expectation that seeded or higher-ranked players advance from early-round matches. However, grass courts introduce volatility absent on slower surfaces; upsets occur at elevated rates during the opening week of grass tournaments, particularly when lower-ranked players possess strong serving mechanics or have recently competed on similar surfaces. Historical data from Nottingham and comparable WTA 250 events shows that matches between players separated by 30+ ranking positions still produce unexpected results in approximately 15–20% of cases during first-round play.
Traders should monitor whether Starodubtseva has competed on grass in the preceding weeks—recent grass exposure materially improves her odds—and whether Navarro carries any soft-tissue concerns into the tournament. The WTA injury report and practice-court observations in the days before 17 June will provide early signals. Additionally, confirmation of the match scheduling and any weather-related delays beyond the seven-day window would trigger the 50-50 resolution clause, making fixture confirmation a critical dependency.
Methodology
This page reviews Nottingham Open: Yulia Starodubtseva vs Emma Navarro across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Sport Prediction — the application we operate, where you trade directly against the Polymarket order book at 0% fees.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Where can I trade this market with the lowest fees?
- On Sport Prediction, 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.
- 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 Sport Prediction?
- Zero. Sport 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, Sport Prediction triggers a quick verification flow that finishes in minutes.
Trade Nottingham Open: Yulia Starodubtseva vs Emma Navarro on Sport Prediction
Live order book, 0% fees, USDC settlement in seconds.
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