Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Sport Prediction Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Sport Prediction → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Sport Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Sport Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Sport Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Sport Prediction → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Sport Prediction.
Active sub-markets
Market context
The first reading that matters here is the maximum temperature at Shanghai Pudong International Airport today, with settlement tied to the day’s highest value rather than the midday snapshot. June at the airport is already in the warm season: WeatherSpark says daily highs rise from about 77°F to 83°F across the month, with highs rarely below 69°F or above 92°F, while the hot season begins around 17 June[1][8].
A 0% implied chance is consistent with a market that expects an ordinary June range, but the bar for the upper buckets is still reachable if sunshine breaks through. Current forecasts are mixed: meteoblue points to a sunny day and a high near 65°F for Pudong, while AccuWeather had overcast conditions around 7:57 am local time with 77°F and a RealFeel of 86°F, showing how quickly the field can shift once cloud cover clears[2][4]. Shanghai Hongqiao’s BBC forecast also showed 28°C and humid conditions, which is useful as a regional check rather than a direct settlement guide[3].
For traders, the catalysts are simple but time-sensitive: updated airport observations, changes in cloud cover, and any storm development that suppresses or lifts the afternoon maximum. Wind and humidity matter less than the sun-versus-cloud balance, and the daily high can be set well before the late-evening window closes if the warmest air arrives early. The key dependency is the Shanghai Pudong Airport station feed used by Wunderground, so revisions in the local forecast and actual airport readings are the main inputs to watch[1][5].
Methodology
This page reviews Highest temperature in Shanghai on June 21? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Sport Prediction — the application we operate, where you trade directly against the Polymarket order book at 0% fees.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Is this market available outside the US?
- Sport Prediction is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does it cost to trade on Sport Prediction?
- Zero. Sport Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Sport Prediction triggers a quick verification flow that finishes in minutes.
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