Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
99% | 1% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
99% | 1% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 99% |
| Tottenham Hotspur O/U 0.5 | 94% |
| 1st Half O/U 0.5 | 90% |
| TSG Hoffenheim O/U 0.5 | 79% |
| O/U 1.5 | 74% |
| Both Teams to Score | 73% |
| TSG Hoffenheim O/U 1.5 | 60% |
| Tottenham Hotspur 1st Half O/U 0.5 | 55% |
| Tottenham Hotspur O/U 2.5 | 54% |
| Tottenham Hotspur O/U 1.5 | 53% |
| TSG Hoffenheim 1st Half O/U 0.5 | 52% |
| 1st Half O/U 1.5 | 51% |
| 2nd Half O/U 2.5 | 51% |
| O/U 2.5 | 50% |
| Both Teams to Score in First Half | 50% |
| 1st Half O/U 2.5 | 50% |
| Tottenham Hotspur 1st Half O/U 1.5 | 50% |
| Both Teams to Score in Second Half | 50% |
| 2nd Half O/U 0.5 | 50% |
| 2nd Half O/U 1.5 | 50% |
| Tottenham Hotspur 2nd Half O/U 0.5 | 50% |
| Tottenham Hotspur 2nd Half O/U 1.5 | 50% |
| TSG Hoffenheim 2nd Half O/U 0.5 | 50% |
| TSG Hoffenheim 2nd Half O/U 1.5 | 50% |
| TSG Hoffenheim 1st Half O/U 1.5 | 49% |
| Tottenham Hotspur (-1.5) | 23% |
| O/U 3.5 | 21% |
| O/U 4.5 | 21% |
| TSG Hoffenheim O/U 2.5 | 10% |
| Tottenham Hotspur (-2.5) | 8% |
| TSG Hoffenheim (-1.5) | 2% |
| TSG Hoffenheim (-2.5) | 2% |
| O/U 5.5 | 2% |
Market context
Tottenham Hotspur will face TSG Hoffenheim in a pre-season friendly on 16 August at 8:00 AM ET, with settlement in USDC occurring at 12:00 UTC that same day. The 23% implied probability reflects modest confidence in additional markets materialising around this fixture, likely contingent on broadcast availability, team sheet announcements, or late-stage promotional activity from either club. Settlement mechanics hinge on whether supplementary betting options—such as player performance props, corner totals, or half-time outcomes—are formally listed before the window closes.
Comparable pre-season friendlies between Premier League and Bundesliga sides have historically generated secondary market interest only when major injury news or lineup surprises emerge within 48 hours of kick-off. Tottenham's fixture density in August typically correlates with Europa League qualification status; their participation in European competition this summer will influence squad rotation depth and thus the granularity of available betting options. Hoffenheim's recent transfer activity and managerial continuity under Pellegrino Matarazzo (confirmed through 2025) provides baseline stability, though pre-season friendlies rarely drive substantial on-chain volume unless tied to broader summer transfer narratives.
Traders should monitor official team communications from both clubs between 14–16 August for squad list releases and broadcast confirmations. Macro crypto conditions—particularly BTC/ETH spot volatility and perpetual funding rates—may suppress or amplify retail participation in lower-liquidity secondary markets. The settlement window's tight closure (same-day, noon UTC) means any catalyst triggering new market listings must surface by mid-morning ET to allow meaningful price discovery before USDC settlement.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- 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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