Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
50% | 50% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
50% | 50% | 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 |
|---|---|
| Colts vs. Patriots | 50% |
| 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% |
| O/U 37.5 | 39% |
| O/U 36.5 | 39% |
| O/U 39.5 | 35% |
| O/U 38.5 | 10% |
| 1H O/U 19.5 | 1% |
| 1H Spread -1.5 | 1% |
| 1H Moneyline | 1% |
| 1H O/U 20.5 | 1% |
| Spread -1.5 | 0% |
| Spread -2.5 | 0% |
| Spread -3.5 | 0% |
Market context
The Indianapolis Colts face the New England Patriots in an NFL preseason contest on 13 August at 19:30 ET. Polymarket currently prices this matchup at 50-50 across USDC conditional tokens on Polygon, reflecting genuine uncertainty about which AFC East side emerges victorious. The settlement mechanics hinge on a straightforward binary: Colts victory triggers YES resolution, Patriots victory triggers NO, whilst postponement extends the contract window and any cancellation or tie defaults to a 50-50 split payout.
Preseason NFL games historically exhibit tighter margins than regular-season fixtures, partly because rosters remain unsettled and coaching staff prioritise player evaluation over win-loss records. The Colts and Patriots have met in preseason play multiple times since 2015, with neither franchise demonstrating consistent dominance in these lower-stakes encounters. Recent preseason records show both teams winning roughly half their August matchups, which aligns with the current even-money pricing. The Patriots' preseason performance under Jerod Mayo's first year as head coach and the Colts' roster composition under Shane Steichen will influence how traders weight historical patterns against 2024 roster changes.
Key catalysts include injury announcements from either squad in the days preceding 13 August—particularly regarding offensive or defensive starters who may be rested—and any last-minute schedule adjustments due to weather or facility issues. The NFL typically confirms preseason lineups by early August. Traders should monitor official team injury reports and coaching statements regarding starter participation, as preseason games frequently see significant player rotation that can shift win probability materially. Settlement occurs at 23:30 ET on 13 August, allowing sufficient time for game completion and official scoring confirmation.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $181K.
Methodology
This page reviews Colts vs. Patriots across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi UK, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
UK Frequently Asked Questions
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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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