Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
BTC Prediction Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on BTC Prediction → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on BTC Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on BTC Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on BTC Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on BTC 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 BTC Prediction.
Active sub-markets
| Nottingham Open, Qualification: Viktorija Golubic vs Veronika Erjavec | 100% Viktorija Golubic | 0% Veronika Erjavec |
| Nottingham Open, Qualification: Viktorija Golubic vs Veronika Erjavec Set 2 O/U 8.5 | 100% Over | 0% Under |
| Nottingham Open, Qualification: Viktorija Golubic vs Veronika Erjavec Set 2 O/U 9.5 | 100% Over | 0% Under |
| Nottingham Open, Qualification: Viktorija Golubic vs Veronika Erjavec Set 2 O/U 10.5 | 100% Over | 0% Under |
| Nottingham Open, Qualification: Viktorija Golubic vs Veronika Erjavec Total Sets: O/U 2.5 | 100% Over 2.5 | 0% Under 2.5 |
| Nottingham Open, Qualification: Viktorija Golubic vs Veronika Erjavec Match O/U 22.5 | 100% Over | 0% Under |
Market context
Viktorija Golubic of Switzerland faces Veronika Erjavec of Slovenia in a Nottingham Open qualifying-round match scheduled for 13 June 2026. The encounter determines who advances to the main draw of the grass-court event, a traditional warm-up tournament ahead of Wimbledon. Golubic, ranked around 150–180 on the WTA tour in recent seasons, has competed consistently on the professional circuit with occasional main-draw appearances at mid-tier events. Erjavec, a lower-ranked player from the Balkans, has limited recent tour exposure and typically competes in ITF-level tournaments. The 100% crowd probability reflects Golubic's superior ranking and experience, though qualifying matches carry inherent volatility.
Historical precedent for grass-court qualifying upsets suggests that ranking alone does not guarantee advancement. Lower-seeded or unranked players have upset higher-ranked opponents in qualifying rounds at Nottingham and similar events when surface comfort, recent match fitness, or tactical matchups favour the underdog. Erjavec's limited tour history makes her form difficult to assess; if she arrives in peak condition from ITF wins, she could pose a genuine threat. Golubic's recent tournament schedule and injury status will be material indicators of her readiness.
Traders should monitor official Nottingham Open draw confirmations and any late withdrawals through the WTA website in early June. Weather delays on grass courts are common and could trigger the seven-day extension clause. Golubic's performance in lead-up events and any public fitness updates from her camp will signal confidence levels. USDC settlement occurs 20 June, allowing a week-long buffer for match completion or dispute resolution.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- Is this market available outside the US?
- BTC 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.
- 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 BTC Prediction?
- Zero. BTC 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.
- 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, Qualification: Viktorija Golubic vs… on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Trade on BTC Prediction →