Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Legal UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Legal UK → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Legal UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Legal UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Legal UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Legal 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 Polymarket Legal UK.
Active sub-markets
| 1st 5 Innings O/U 2.5 | 100% Over | 0% Under |
| Extra Innings | 0% YES | 100% NO |
| O/U 8.5 | 0% Over | 100% Under |
| Spread -1.5 | 0% Arizona Diamondbacks | 100% Miami Marlins |
| 1st 5 Innings Spread -2.5 | 50% Miami Marlins | 50% Arizona Diamondbacks |
| 1st 5 Innings O/U 5.5 | 100% Over | 0% Under |
Market context
The Arizona Diamondbacks travel to Miami on 10 June for an evening fixture against the Marlins, with first pitch at 6:40 PM ET. The market settles on the official final result; postponements extend the settlement window to 17 June, whilst cancellations without a make-up game or ties default to 50-50 resolution. Current crowd probability sits at 51% for an Arizona victory, suggesting marginal confidence in the visiting side.
Historical matchup data and recent form provide the baseline for interpreting this probability. The Diamondbacks finished the 2023 season with a 84–78 record and reached the World Series, whilst the Marlins posted 62–100, among the weakest in the National League. Head-to-head records across recent seasons favour Arizona substantially. The 51% implied probability reflects neither the historical gap nor typical home-field advantage weighting, suggesting either market uncertainty about roster changes, injury status, or pitching matchups for this specific date.
Traders should monitor roster announcements and injury reports through to game time, particularly starting pitcher assignments and bullpen availability. Weather conditions in Miami—afternoon thunderstorms are common in June—could affect game scheduling or playing conditions. Under UK regulatory frameworks, this market remains accessible without KYC verification for stakes up to £1,200 (approximately $1,500 USD equivalent), aligning with the German GlüStV threshold for low-value event contracts. US CFTC jurisdiction over prediction markets remains unsettled; UK-domiciled platforms typically operate under Gambling Commission oversight rather than derivatives regulation, though cross-border traders should verify their own compliance obligations.
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Legal UK, which mirrors the Polymarket order book directly.
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 Polymarket Legal UK?
- Zero. Polymarket Legal 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.
- 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 Arizona Diamondbacks vs. Miami Marlins on Polymarket Legal UK
Live order book, 0% fees, USDC settlement in seconds.
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