Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
65% | 35% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
65% | 35% | 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 |
|---|---|
| Spread -1.5 | 65% |
| Patriots O/U 19.5 | 50% |
| Colts O/U 18.5 | 50% |
| Patriots O/U 18.5 | 50% |
| Colts O/U 19.5 | 50% |
| Patriots O/U 17.5 | 50% |
| Colts O/U 20.5 | 50% |
| Colts vs. Patriots | 25% |
| Spread -2.5 | 13% |
| Spread -3.5 | 8% |
| O/U 36.5 | 6% |
| O/U 38.5 | 4% |
| O/U 39.5 | 4% |
| O/U 37.5 | 4% |
| 1H O/U 19.5 | 1% |
| 1H Spread -1.5 | 1% |
| 1H Moneyline | 1% |
| 1H O/U 20.5 | 1% |
Market context
The Indianapolis Colts and New England Patriots meet on 13 August in a pre-season NFL contest. The market currently prices a Colts victory at 30 per cent, implying Patriots favouritism despite Indianapolis entering the off-season with a more stable roster construction and recent playoff experience under Shane Steichen's second year as head coach.
Pre-season matchups carry structural noise that complicates historical comparison. Teams routinely rest starters, rotate depth players, and deploy unconventional schemes to evaluate fringe roster spots. The Patriots, rebuilding under Jerod Mayo's first season, have shown inconsistent personnel decisions and face uncertainty at quarterback following the Jacoby Brissett signing. Indianapolis, conversely, retained Anthony Richardson and built continuity around a defence that ranked top-ten in yards allowed last season. However, pre-season records correlate weakly with regular-season outcomes; teams trailing in implied probability have won pre-season fixtures at rates near 40 per cent historically, suggesting the current 30 per cent for Indianapolis reflects either market overweighting of Patriots brand recognition or genuine uncertainty about roster readiness.
Traders should monitor injury reports released 48 hours before kick-off, particularly regarding Indianapolis's secondary depth and New England's offensive line availability. The Patriots' coaching staff has signalled plans to feature rookie quarterback Drake Maye extensively in pre-season action, which could inflate offensive inconsistency. Any late-week roster moves—trades, practice squad elevations, or surprise inactives—typically shift pre-season lines by 2–3 percentage points. Weather conditions on game day, whilst secondary to personnel factors, occasionally influence outcomes in August when conditioning remains incomplete.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $133K.
Methodology
Sports-specific comparison page for Colts vs. Patriots. 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
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- 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.
- 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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