Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) 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 |
|---|---|
| 39°C | 100% |
| 36°C or below | 0% |
| 37°C | 0% |
| 38°C | 0% |
| 40°C | 0% |
| 41°C | 0% |
| 42°C | 0% |
| 43°C | 0% |
| 44°C | 0% |
| 45°C | 0% |
| 46°C or higher | 0% |
Market context
Busan’s August heat usually peaks in the low 30s Celsius, and the market resolves off the highest reading at Gimhae International Airport on 1 August. With the crowd at 0% YES, the market is effectively pricing in an outcome outside the usual local range, even though August is the city’s hottest month and long-run daily highs cluster around 28–30°C, with occasional spikes above 34°C.[2][4][17]
Historical context argues against treating the current price as a simple “cool day” assumption. Busan’s August climate averages are warm and humid, but the distribution still leaves room for hotter-than-average afternoons, and the city’s all-time August warmings have reached the high 30s Celsius in past records.[2][14][17] That means the key question is not whether August is normally hot, but whether synoptic heat and clear-sky heating align on the day-long observation window.
The main catalysts are the near-term forecast updates and any shift in rain or marine influence before the noon UTC settlement cut-off. Current August outlooks show highs around 82–88°F, roughly 28–31°C, which is consistent with a normal summer day rather than a major anomaly.[1][8][16] Traders should watch for changes in humidity, cloud cover, and rainfall timing, because Busan’s maritime climate can cap daytime maxima quickly if sea breezes or showers build earlier than expected.[2][3]
Methodology
Sports-specific comparison page for Highest temperature in Busan on August 1?. 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.
- 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.
- 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.
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