Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via World Cup 2026 Favorites) Pick polygram.ink (preferred broker) |
38% | 62% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
38% | 62% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 23°C | 38% |
| 24°C | 38% |
| 22°C | 17% |
| 25°C | 8% |
| 21°C | 3% |
| 20°C | 1% |
| 26°C | 1% |
| 19°C or below | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C or higher | 0% |
Market context
London City Airport’s highest temperature for 6 August is the settlement driver, and the current crowd pricing of **0% YES** implies traders are treating the market as effectively unpriced or not yet active, rather than leaning towards any specific Celsius band. With the window closing at 12:00 UTC, the key issue is whether the day’s maximum is set early or whether later sunshine pushes the reading into the low- or mid-20s.
That matters because London in early August usually sits in a fairly narrow range, but heat spikes can still move the daily high several degrees. AccuWeather’s London August outlook has the day around **75°F/56°F** on 6 August, which points to a high in the mid-20s Celsius, while Polymarket’s own ladder currently clusters most interest between **22°C and 24°C**, with **22°C** and **23°C** tied as the leading bands at **19%** each.[1][2] For context, London has already seen a hotter spell this summer: Reuters reported a June UK temperature record, and other coverage noted 26.6°C at Kew Gardens and a 35°C national heatwave, showing the city can still jump well above seasonal norms when hot air arrives from the continent.[15][12][20]
For traders, the main catalysts are the morning and late-morning forecast updates, especially any change in cloud cover, wind direction, or shower risk that affects whether London City Airport gets full heating before noon UTC. A fresh local forecast source has already described the day as one with sunny intervals and mild temperatures, with a published range of **22°C** high and **13°C** low, which supports a moderate ceiling unless the cloud breaks more decisively than expected.[4]
Methodology
Football-specific comparison page for Highest temperature in London 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 (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
- 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.
- 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.
- What's the difference between match odds and outright odds?
- Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
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