Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| ↓ 65,000 | 100% |
| ↑ 73,000 | 0% |
| ↑ 72,000 | 0% |
| ↑ 71,000 | 0% |
| ↑ 70,000 | 0% |
| ↑ 69,000 | 0% |
| ↑ 68,000 | 0% |
| ↑ 67,000 | 0% |
| ↑ 66,000 | 0% |
| ↓ 64,000 | 0% |
| ↓ 63,000 | 0% |
| ↓ 62,000 | 0% |
| ↓ 61,000 | 0% |
| ↓ 60,000 | 0% |
| ↓ 59,000 | 0% |
| ↓ 58,000 | 0% |
Market context
Bitcoin spent 8 August 2026 in a tight band around the mid-$64,000s to mid-$65,000s, with Yahoo Finance showing a close of $64,932.57 and Investing.com putting the intraday range at roughly $64,824.5 to $65,065.4.[1][3] That makes the market’s **0% YES** price hard to read as anything but a view that an outsized move is very unlikely within the settlement window, because the day’s realised volatility so far has been small relative to the kind of jump needed to reach higher threshold bands.[1][3]
Comparable August prints point the same way. OpenBitcoin’s monthly data shows Bitcoin finished 7 August at $64,878 after a modest 1.0% rise, while its August summary says the month so far has been dominated by a broad move rather than a breakout, with a high of $65,332 and a low of $62,216.[2] Yahoo Finance also shows a year-ago August close near $116,689, underscoring how far the asset is trading from prior cycle extremes rather than approaching them from above.[1] In that context, a zero-implied chance on a specific August 8 price outcome is consistent with a market that has already largely priced in range-bound trade.[2][1]
The main catalysts to watch are any late-day macro or ETF-flow headlines, plus whether spot liquidity thins enough to exaggerate moves into the settlement cut-off. Bitcoin was still trading near $65,079 late on 8 August in one live feed, and Fortune reported it at $64,744.92 early that morning, so the immediate dependency is whether price can sustain gains or mean-revert before the window closes.[4][7] Robinhood’s event page also suggests the market is concentrating on a single high-probability band around $59,000 or above, which helps explain why traders may see little value in betting on a dramatic late-session dislocation.[5]
Methodology
Sports-specific comparison page for What price will Bitcoin hit on August 8?. 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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