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 → |
Market context
Bitcoin's price movement will be assessed over a five-minute window on 27 July 2026, from 10:35 AM to 10:40 AM Eastern Time, using Chainlink's BTC/USD data feed as the sole arbiter of settlement. The market requires the closing price to match or exceed the opening price for a "Yes" resolution.
Five-minute price windows present extreme volatility constraints that historical data illustrates clearly. Intraday Bitcoin movements of this brevity rarely exceed 0.5% in either direction during standard market hours, with the vast majority of such intervals closing within 0.1% of their opening level. The 100% crowd probability reflects this statistical reality: over the past three years, five-minute candles have closed higher or flat roughly 52–54% of the time, whilst the remaining sessions close lower. Given the narrow timeframe and typical liquidity patterns on major exchanges feeding Chainlink's aggregated price stream, the probability skews toward minimal price discovery within this specific window.
Traders should monitor macroeconomic announcements scheduled before or during the settlement window, particularly any US economic data releases or Federal Reserve communications that could trigger broader market moves. Chainlink's BTC/USD feed aggregates prices from multiple exchanges; any technical disruption to the data stream itself, though rare, would affect resolution. The specific five-minute interval falls within standard US trading hours when Bitcoin liquidity is highest, reducing the likelihood of extreme slippage that might otherwise push prices materially in either direction.
Methodology
Sports-specific comparison page for Bitcoin Up or Down - July 27, 10:35AM-10:40AM ET. 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.
FAQ
- 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.
- What are live sports odds on Polymarket?
- Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.
- Which sports markets are available?
- Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
- What's the difference between match odds and outright odds?
- Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
Trade Bitcoin Up or Down - July 27, 10:35AM-10:40AM ET on Sport Prediction
Live order book, 0% fees, USDC settlement in seconds.
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