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: Viktorija Golubic vs Sofia Kenin Set 2 O/U 8.5 | 100% Over | 0% Under |
| Nottingham Open: Viktorija Golubic vs Sofia Kenin Set 2 O/U 9.5 | 100% Over | 0% Under |
| Nottingham Open: Viktorija Golubic vs Sofia Kenin Set 2 O/U 10.5 | 0% Over | 100% Under |
| Nottingham Open: Viktorija Golubic vs Sofia Kenin Set 1 Winner | 100% Golubic | 0% Kenin |
| Nottingham Open: Viktorija Golubic vs Sofia Kenin Set Handicap +/-1.5 | 0% Golubic | 100% Kenin |
| Nottingham Open: Viktorija Golubic vs Sofia Kenin Match O/U 21.5 | 100% Over | 0% Under |
Market context
Viktorija Golubic and Sofia Kenin are scheduled to meet in the first round of the Nottingham Open grass-court tournament on 16 June 2026. Golubic, a Swiss player ranked in the 40s, has competed regularly on the WTA circuit with modest success on grass; Kenin, the American former Australian Open finalist, has struggled with consistency and ranking volatility since 2021, spending recent seasons rebuilding her form after injury setbacks. The 100% crowd probability suggests near-certainty of match completion, though grass tournaments historically carry elevated weather disruption risk given Nottingham's English Midlands location and June's unpredictable conditions.
Golubic's recent record on grass courts provides limited precedent for confident prediction; she has reached few grass finals and typically performs stronger on clay. Kenin's return to competitive tennis has been gradual, with her ranking fluctuating between 50 and 100 depending on tournament selection and performance. Historical context from comparable first-round grass matchups between a steady mid-ranked European player and an American former top-10 talent shows outcomes split fairly evenly, though Golubic's consistency on tour generally edges out Kenin's recent form volatility.
Traders should monitor official Nottingham Open draw confirmations and any late withdrawals through early June. Kenin's fitness status remains a key variable—her injury history means last-minute scratches occur periodically. Weather forecasts for Nottingham on 16 June will become relevant five to seven days prior; extended rain could trigger the seven-day delay clause. The WTA's official tournament schedule and both players' confirmed entry lists, typically published two weeks before the event, will clarify whether this match actually reaches court.
Methodology
We track Nottingham Open: Viktorija Golubic vs Sofia Kenin 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
- 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.
- Is this market available outside the US?
- Sport Prediction 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 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.
- 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 Nottingham Open: Viktorija Golubic vs Sofia Kenin on Sport Prediction
Live order book, 0% fees, USDC settlement in seconds.
Trade on Sport Prediction →