Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Election Predictions UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Election Predictions UK → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Election Predictions UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Election Predictions UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Election Predictions UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Election Predictions 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 Election Predictions UK.
Active sub-markets
| Lexus Eastbourne Open, Qualification: Matteo Arnaldi vs Alastair Gray | 100% Matteo Arnaldi | 0% Alastair Gray |
| Completed Match | 100% YES | 0% NO |
| Lexus Eastbourne Open, Qualification: Matteo Arnaldi vs Alastair Gray Total Sets: O/U 2.5 | 0% Over 2.5 | 100% Under 2.5 |
| Lexus Eastbourne Open, Qualification: Matteo Arnaldi vs Alastair Gray Set 1 O/U 8.5 | 100% Over | 0% Under |
| Lexus Eastbourne Open, Qualification: Matteo Arnaldi vs Alastair Gray Set 2 O/U 8.5 | 100% Over | 0% Under |
| Lexus Eastbourne Open, Qualification: Matteo Arnaldi vs Alastair Gray Set 1 O/U 9.5 | 100% Over | 0% Under |
Market context
Matteo Arnaldi’s qualification match against Alastair Gray at Eastbourne has already moved well beyond a simple scheduled contest, with live scoring outlets showing Arnaldi in front and the market effectively pricing in a decisive outcome. ESPN lists the qualifying first round for 20 June, while ATP live scores and TennisMajors are carrying the match in progress, which is consistent with the crowd-implied 100% YES leaning on the basis that the underlying event is actively being played rather than drifting towards a cancellation or walkover scenario.[7][4][1]
The cleanest way to read that probability is by comparison with past tennis settlement situations: when a match starts and one player is already through the early stages, markets usually remain tightly anchored to the live result unless there is a retirement, default, or abandonment risk. Here, the relevant comparison is not a pre-match coin flip but a live advancement case, where the key question is whether Arnaldi completes the job or Gray forces the market into one of the special settlement outcomes if play stops before a winner is recorded.[3][5]
For traders, the main catalysts are match completion, any retirement or default, and whether the fixture stays inside the settlement window ending 27 June. The practical dependency is the Eastbourne qualifying schedule itself: if the contest is finished normally, the market should resolve on the player who advances; if it is not played at all, or is left unresolved past the deadline, the 50-50 rule becomes relevant. The current news and score flow therefore matter more than pre-event expectations, with ATP and live-score services indicating that the market is leaning on the match proceeding to a decisive end rather than any broader tournament or selection development.[4][6][2]
Methodology
Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Lexus Eastbourne Open, Qualification: Matteo Arnaldi vs Alastair Gray plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.
Resolution & payout
For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.
FAQ
- Where can I trade this market with the lowest fees?
- On Election Predictions UK, 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?
- Election Predictions UK 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 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.
- 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.
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