Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Mundial 2026 Grupos) 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 → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 11°C | 100% |
| 5°C or below | 0% |
| 6°C | 0% |
| 7°C | 0% |
| 8°C | 0% |
| 9°C | 0% |
| 10°C | 0% |
| 12°C | 0% |
| 13°C | 0% |
| 14°C | 0% |
| 15°C or higher | 0% |
Market context
Wellington's highest temperature on 19 August 2026 will be measured at the airport weather station and recorded in Weather Underground's Daily Observations table. August is Wellington's coldest month, with mean maximum temperatures around 11–12°C and extremes rarely exceeding 16°C. The 0% crowd probability reflects the market's upper temperature thresholds, which likely begin at ranges well above historical norms for this date and season.
Historical August records for Wellington show that temperatures above 18°C are exceptionally rare in the month, with the airport station recording only scattered days in that range across decades of data. A temperature spike to 20°C or higher would require an unusual warm air mass or föhn conditions, events that occur perhaps once every several years during Wellington's winter. The current crowd assessment suggests traders are pricing in minimal likelihood of extreme warmth on this specific date.
Traders monitoring this market should track the Southern Hemisphere winter pattern developing through July and early August 2026, particularly any forecasts indicating high-pressure systems moving across the lower North Island. MetService and NIWA seasonal outlooks, typically released monthly, will signal whether conditions favour warmer-than-average temperatures. The resolution hinges entirely on the Daily Observations table at Wellington Airport, not summary figures, making data source verification critical at settlement.
Methodology
Football-specific comparison page for Pronóstico: Highest temperature in Wellington on August 19?. 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.
- 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.
- 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.
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