Bitcoin Up or Down - August 20, 4AM ET

Platform comparison

Market context

This market resolves based on whether Bitcoin's price on Binance closes at or above its opening level during the one-hour candle beginning 4AM ET on 20 August 2026. The settlement window closes at 9AM ET that same day, allowing five hours for the candle to fully form and finalise before resolution.

The 100% implied probability reflects extreme confidence in an upward or flat close, though this warrants scrutiny given intraday volatility patterns in Bitcoin. Historical hourly candles show Bitcoin moves both directions with regularity; a one-hour window carries genuine uncertainty despite longer-term directional bias. Comparable single-hour Bitcoin movements across major exchanges typically see roughly 45–55% directional splits depending on broader market conditions, suggesting the current probability assignment may be overconfident or reflect specific known catalysts.

Traders should monitor macroeconomic releases scheduled for 20 August and preceding days, particularly US inflation data or Federal Reserve communications that could trigger overnight positioning shifts before the 4AM ET window opens. Bitcoin's correlation with equity futures and Treasury yields remains material; Asian and European trading sessions on 20 August will establish momentum heading into the US morning. Binance's BTC/USDT pair liquidity typically supports tight spreads during US hours, reducing slippage risk for large positions but also meaning institutional flows can move the hourly candle decisively in either direction within the settlement window.

Methodology

Football-specific comparison page for Bitcoin Up or Down - August 20, 4AM 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 (US-focused) or Manifold (play-money).

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

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.

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.

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.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.