Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 54,000 | 100% |
| 56,000 | 100% |
| 58,000 | 99% |
| 60,000 | 99% |
| 62,000 | 96% |
| 64,000 | 60% |
| 66,000 | 10% |
| 68,000 | 1% |
| 70,000 | 1% |
| 72,000 | 0% |
| 74,000 | 0% |
Market context
Bitcoin's price action on 20 August 2026 at noon ET will determine this market's outcome, based on the closing price of the one-minute candle on Binance's BTC/USDT pair. The settlement window extends to 16:00 ET that day, allowing for any final price movements before resolution. Binance's spot trading data serves as the sole reference point; prices on other exchanges or trading pairs are irrelevant to the outcome.
The 100% crowd probability reflects the difficulty in predicting a specific price level two years forward with precision. Bitcoin's historical volatility means that even modest price thresholds have resolved as toss-ups in comparable markets. Previous single-day price predictions have shown that intraday noon-hour pricing can diverge meaningfully from daily open or close levels, particularly around macroeconomic announcements or regulatory news cycles that cluster in morning hours.
Traders should monitor Federal Reserve policy announcements, which often drive risk-asset repricing in the hours surrounding noon ET. Spot Bitcoin holdings by major institutions and any significant regulatory developments in the US or EU could shift sentiment sharply in the weeks preceding August 2026. Binance's operational status and any technical issues affecting candle data recording represent secondary dependencies; the exchange has maintained consistent uptime, though traders should verify data integrity on the settlement date itself given the specificity of the one-minute candle requirement.
Methodology
Sports-specific comparison page for Bitcoin above … on August 20?. 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
- 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.
- 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.
- How fast do sports winnings settle?
- Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
- 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 above … on August 20? on March Madness Predictions
Live order book, 0% fees, USDC settlement in seconds.
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