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 | 100% |
| 60,000 | 99% |
| 62,000 | 87% |
| 64,000 | 19% |
| 66,000 | 1% |
| 68,000 | 1% |
| 70,000 | 0% |
| 72,000 | 0% |
| 74,000 | 0% |
Market context
Bitcoin's price action on 17 August 2026 at noon Eastern Time will determine this market's outcome, with settlement based on the closing price of the 1-minute candle on Binance's BTC/USDT pair. The 100% crowd probability reflects confidence that Bitcoin will trade above the specified threshold at that precise moment, though the exact price level remains unspecified in the market title.
Historical volatility in Bitcoin's intraday trading suggests that noon ET closures have rarely produced extreme price movements absent major news releases. During comparable periods of market stability, single-minute candles at fixed times have typically remained within the broader daily range established in earlier sessions. The current implied probability of certainty warrants scrutiny, as even modest market dislocations—flash crashes, exchange connectivity issues, or liquidity gaps—have occasionally produced unexpected closes at specific timestamps.
Traders should monitor scheduled macroeconomic announcements in the days preceding 17 August, particularly US inflation data or Federal Reserve communications that could influence Bitcoin's broader directional bias. Binance's operational status and any maintenance windows affecting the BTC/USDT pair merit attention, as technical disruptions have occasionally altered recorded candle closes. The settlement window's precise timing at 16:00 UTC (noon ET) means that European morning trading and Asian overnight sessions will have concluded, potentially reducing liquidity relative to US market hours and increasing the risk of wider bid-ask spreads at the resolution moment.
Methodology
Sports-specific comparison page for Bitcoin above … on August 17?. 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.
- 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.
- 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.
- 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.
Trade Bitcoin above … on August 17? on March Madness Predictions
Live order book, 0% fees, USDC settlement in seconds.
Open live market →