Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
99% | 1% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
99% | 1% | 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 |
|---|---|
| 27°C | 99% |
| 28°C | 2% |
| 29°C | 1% |
| 30°C | 1% |
| 31°C or higher | 0% |
| 21°C or below | 0% |
| 22°C | 0% |
| 23°C | 0% |
| 24°C | 0% |
| 25°C | 0% |
| 26°C | 0% |
Market context
The real-world event centres on whether Qingdao’s highest temperature on 29 June 2026 reaches 29°C at the Jiaodong International Airport station, a threshold currently assigned only a 2% chance by the crowd. Historical data for June in Qingdao shows average highs between 22°C and 26°C, with 29 June typically recording around 25.6°C[1][7]. While some days can climb to 35°C, such extremes are rare and usually occur later in summer, not in early June when coastal breezes and frequent cloud cover keep temperatures moderate[1][4]. The 2% probability aligns with comparable years where highs rarely exceeded 28°C before late July.
Traders should monitor Wunderground’s hourly updates for the airport station on 29 June, as the market resolves solely on its reported daily maximum[1]. Key catalysts include sudden shifts in wind patterns, unexpected heatwaves from inland Shandong, or unseasonal clear skies that could push temperatures higher[2]. AccuWeather’s June 2026 forecast suggests daily highs between 27°C and 30°C, but notes these are upper bounds, not averages[2]. Any official weather bulletins from China’s Meteorological Administration regarding extreme heat warnings for Qingdao on that day would be critical to watch, as they often precede temperature spikes[2]. The settlement window closes at 12:00 UTC, so real-time data after 06:00 UTC will determine the outcome.
Methodology
Sports-specific comparison page for Highest temperature in Qingdao on June 29?. 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.
- 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.
- 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.
- 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.
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