Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Scam?) Pick polygram.ink (preferred broker) |
63% | 37% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
63% | 37% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Dolphins vs. Commanders | 63% |
| 1H Moneyline | 63% |
| Spread -1.5 | 60% |
| Spread -2.5 | 59% |
| Dolphins O/U 19.5 | 53% |
| 1H Spread -2.5 | 52% |
| O/U 36.5 | 50% |
| Commanders O/U 17.5 | 50% |
| Commanders O/U 16.5 | 50% |
| 1H Spread -3.5 | 50% |
| Spread -3.5 | 49% |
| 1H O/U 19.5 | 49% |
| Dolphins O/U 20.5 | 48% |
| O/U 37.5 | 46% |
| Spread -1.5 | 35% |
Market context
The Miami Dolphins face the Washington Commanders in a preseason NFL matchup on 14 August at 19:00 ET. Polymarket currently prices the Dolphins victory at 63% implied probability, reflecting their status as a more established playoff contender relative to the Commanders' rebuilding trajectory. On-chain, this conditional token pair settles via USDC on Polygon, with the market remaining open through 23:00 UTC on settlement day should any postponement occur. A complete cancellation or tie resolves the contract 50-50 across both sides.
Preseason games carry structural unpredictability absent from regular-season contests. Historically, preseason outcomes correlate weakly with team strength because rosters feature heavy rotation of backup and reserve players. The Dolphins' 2023 preseason record diverged notably from their subsequent 11-6 regular season, whilst the Commanders' 2024 preseason performance proved similarly disconnected from their actual competitive standing. Current pricing at 63% reflects the Dolphins' overall organisational depth rather than any reliable predictive signal from preseason matchups themselves.
Key catalysts include injury reports released in the 48 hours before kickoff—both teams' coaching staffs typically limit star players' exposure in August. Weather conditions at the venue matter for preseason play, where teams test specific tactical adjustments rather than deploying full-strength schemes. Recent reporting from NFL.com and team beat writers should clarify which Dolphins and Commanders starters will see meaningful snaps. Traders should monitor official roster announcements through 13 August, as late-breaking roster moves or unexpected rest decisions can shift the competitive balance in preseason contexts where depth matters disproportionately.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $118K.
Methodology
We track Dolphins vs. Commanders across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
UK Frequently Asked Questions
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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