Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
75% | 25% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
75% | 25% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 1st 5 Innings O/U 2.5 | 75% |
| 1st 5 Innings O/U 3.5 | 61% |
| O/U 7.5 | 56% |
| NRFI | 49% |
| O/U 8.5 | 47% |
| 1st 5 Innings O/U 4.5 | 47% |
| Cleveland Guardians vs. Detroit Tigers | 46% |
| Spread -1.5 | 37% |
| O/U 9.5 | 37% |
| 1st 5 Innings O/U 5.5 | 36% |
| Spread -1.5 | 34% |
| 1st 5 Innings Spread -1.5 | 34% |
| 1st 5 Innings O/U 6.5 | 28% |
| 1st 5 Innings Spread -1.5 | 27% |
| Spread -2.5 | 27% |
| Spread -2.5 | 25% |
| Extra Innings | 10% |
Market context
The Cleveland Guardians travel to Detroit on 11 August for an evening fixture against the Tigers in what shapes as a competitive AL Central matchup. Cleveland enters as slight favourites at 46 per cent implied probability, reflecting their stronger regular-season positioning but acknowledging Detroit's capacity to compete in divisional play.
Historical precedent suggests these probabilities undervalue home-field advantage in August baseball. The Tigers have won 11 of their last 19 home games against Cleveland since 2022, a record that contradicts the current market lean towards the visitors. Detroit's ballpark conditions in mid-August typically favour their roster construction, with cooler evening temperatures reducing fly-ball distances—a factor that benefits their pitching staff. Conversely, Cleveland's recent form has been inconsistent; they've alternated between winning and losing streaks over the past fortnight, making their true strength difficult to calibrate.
Key variables for settlement centre on roster availability and starting-pitcher matchups, which typically become confirmed 24 to 48 hours before first pitch. The Tigers' recent injury updates, particularly regarding their outfield depth, will influence their offensive ceiling. Cleveland's bullpen usage in preceding games could affect their ability to sustain leads if the starter requires early relief. Weather forecasts for Detroit on game day—specifically wind direction and temperature—warrant monitoring, as August conditions at Comerica Park can shift run-scoring expectations materially. Beat reporters covering both clubs will flag any late-inning roster decisions or tactical adjustments that might shift the competitive balance.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $66K.
Methodology
Sports-specific comparison page for Cleveland Guardians vs. Detroit Tigers. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
UK Frequently Asked Questions
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- 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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