Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Prediction Market UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Prediction Market UK → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Prediction Market UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Prediction Market UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Prediction Market UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Prediction Market UK → |
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 Prediction Market UK.
Active sub-markets
| Parma: Jesper de Jong vs Laslo Djere Set 1 O/U 8.5 | 100% Over | 0% Under |
| Parma: Jesper de Jong vs Laslo Djere Set 1 O/U 9.5 | 0% Over | 100% Under |
| Parma: Jesper de Jong vs Laslo Djere Total Sets: O/U 2.5 | 0% Over 2.5 | 100% Under 2.5 |
| Parma: Jesper de Jong vs Laslo Djere | 0% Jesper de Jong | 100% Laslo Djere |
| Completed Match | 100% YES | 0% NO |
| Parma: Jesper de Jong vs Laslo Djere Set 2 Winner | 0% Jong | 100% Djere |
Market context
The ATP 250 tournament in Parma will feature a first-round match between Dutch player Jesper de Jong and Serbian competitor Laslo Djere, originally scheduled for 15 June 2026. In prediction markets, a YES share represents a bet that de Jong advances; a NO share bets on Djere's progression. The current crowd-implied probability sits at 100% YES, meaning the market is pricing de Jong as the near-certain winner. This extreme confidence warrants scrutiny, as such probabilities typically reflect either decisive historical matchup data, significant ranking disparity, or recent form divergence between the players.
Djere has competed consistently on the ATP circuit with career-high rankings in the top 50, whilst de Jong's trajectory and recent performance metrics would determine whether such overwhelming odds reflect genuine competitive advantage or market mispricing. Historical precedent suggests that opening-round matches at secondary ATP events frequently produce upsets when lower-ranked players face seeded opponents in unfavourable conditions. The settlement window extends to 22 June 2026, allowing seven days beyond the scheduled date for completion; matches abandoned or unfinished beyond this window resolve to 50-50.
Traders should monitor official ATP scheduling confirmations, injury announcements, and surface-condition reports closer to the event date. Court assignments and weather forecasts for Parma's clay surface can materially affect performance, particularly for players with differing clay-court specialisation. Recent ranking updates and head-to-head records, if available, will clarify whether the 100% probability reflects substantive form data or represents an information gap worth investigating.
Methodology
We track Parma: Jesper de Jong vs Laslo Djere 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
- 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'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 Prediction Market UK?
- Zero. Prediction Market UK 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, Prediction Market UK triggers a quick verification flow that finishes in minutes.
Trade Parma: Jesper de Jong vs Laslo Djere on Prediction Market UK
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