Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
97% | 3% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
97% | 3% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 29°C | 97% |
| 30°C | 2% |
| 25°C or below | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C or higher | 0% |
Market context
Chengdu’s early-August heat is usually firmly in the warm-to-hot range, with average August highs around 29–31°C and typical daily highs on 6 August near 29–31°C; several climate guides also note that extreme days can still push into the upper 30s Celsius. That makes a zero-per-cent “yes” price hard to reconcile with the city’s seasonal baseline, because the market resolves to the day’s *highest* temperature, not the average.[2][6][15]
For context, Chengdu’s August record high has been reported at 39°C in 2022, and other long-run climate summaries place the month’s absolute peak in roughly the same upper-30s/low-40s band, showing that outlier heat is possible even if not typical. In recent comparable August cases, daily highs have often sat in the low- to mid-30s Celsius rather than near the cold-end thresholds that would favour a very low settlement range.[4][8][19]
The main catalysts are the short-range forecast and any change in the local weather pattern before the airport-observed reading is locked in by Wunderground at Chengdu Shuangliu International Airport. Traders should watch for the timing of afternoon heating, cloud cover and rain chances, because Chengdu’s August climate is humid and unsettled enough that showers can cap the day’s maximum, while clear spells can quickly lift it towards the low 30s or higher.[1][2][14][15]
Methodology
Sports-specific comparison page for Highest temperature in Chengdu on August 6?. 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.
- 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.
- 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.
Trade Highest temperature in Chengdu on August 6? on March Madness Predictions
Live order book, 0% fees, USDC settlement in seconds.
Open live market →