Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via توقعات كورة) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 33°C | 100% |
| 34°C | 1% |
| 29°C or below | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 35°C | 0% |
| 36°C | 0% |
| 37°C | 0% |
| 38°C | 0% |
| 39°C or higher | 0% |
Market context
Shanghai’s **4 August** maximum at Pudong will be set by the day’s highest observed temperature, so the key question is whether the airport reaches a routine hot-season high or gets pushed by a short-lived heat spike. Seasonal guides for Shanghai put August daytime highs mostly in the low- to mid-30s Celsius, with heat and humidity common and occasional peaks well above average, while forecast pages for 4 August cluster around about **33–34°C** for the city more broadly.[1][3][8][17][18]
That framing makes the current **0% YES** crowd view look conservative rather than implausible: the market only needs one reading in the relevant range, and Shanghai’s August climatology regularly sits close to or above 30°C.[1][4][5] Comparable forecast pages for 4 August point to a hot afternoon and limited rain risk, which supports the idea that the airport could still print a temperature in the upper-20s to mid-30s rather than stay muted all day.[2][3][10][16] Historical August data also show occasional extremes around the high-30s Celsius, so a hotter-than-forecast outcome is not out of pattern for this time of year.[13][17]
What traders should watch is whether updated short-range forecasts keep the afternoon peak intact, and whether cloud cover, showers or sea-breeze effects trim the daytime maximum at Pudong versus central Shanghai. AccuWeather’s August outlook shows Shanghai highs ranging from **82°F to 92°F** overall, and the 4 August daily forecast pages are already pointing to a very warm day, so any late shift towards more cloud or rain would matter for the final maximum.[1][7][3] The settlement source is the Wunderground history page for Shanghai Pudong International Airport Station, so intraday timing matters: a brief early-afternoon surge can settle the market even if conditions ease later.[1]
Methodology
Football-specific comparison page for توقع: Highest temperature in Shanghai on August 4?. 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
- 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.
- 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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