Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
98% | 2% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
98% | 2% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 27°C | 98% |
| 28°C | 2% |
| 29°C or higher | 1% |
| 19°C or below | 0% |
| 20°C | 0% |
| 21°C | 0% |
| 22°C | 0% |
| 23°C | 0% |
| 24°C | 0% |
| 25°C | 0% |
| 26°C | 0% |
Market context
Munich Airport Station will record its peak temperature for 15 July 2026, with the market resolving to the specific Celsius range containing that value via Wunderground data. The crowd currently assigns a 0% probability to the YES outcome, suggesting traders believe the event conditions will not trigger the specific binary condition attached to the “YES” side, though the frontrunner for the actual temperature is 27°C at 37% probability, closely followed by 26°C at 35% [1].
Historical July highs in Munich typically cluster between 24°C and 29°C, making the 27°C and 26°C outcomes the most statistically probable based on past weather patterns. The 0% YES probability likely reflects a mismatch between the binary contract’s strike condition and the expected temperature range, rather than a belief that no heat will occur. Comparable cases from recent years show Munich rarely exceeds 32°C in mid-July, reinforcing the market’s focus on the 26–27°C band as the realistic settlement zone [1].
Traders should monitor the daily Wunderground history feed for the Munich Airport Station (EDDM) as the primary settlement source, watching for any sudden shifts in forecast models from the European Centre for Medium-Range Weather Forecasts. No major weather announcements are scheduled before the 2026-07-15T12:00:00Z settlement window, but funding rates on BTC and ETH futures could influence liquidity if macro volatility spikes, potentially altering on-chain USDC settlement flows. Whale flows into weather-related prediction markets remain thin, so spot exchange activity on crypto pairs may indirectly impact capital allocation to this contract.
Sources: 1
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
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