Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Who Will Win Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Who Will Win → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Who Will Win → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Who Will Win → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Who Will Win → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Who Will Win → |
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 Who Will Win.
Active sub-markets
Market context
On 24 June 2026, Hong Kong will face its peak June heat, with the Hong Kong Observatory set to record the absolute daily maximum temperature in degrees Celsius. The current crowd-implied probability of 0% for a "YES" outcome suggests the market expects the temperature to fall outside the defined range, likely underestimating the seasonal heatwave potential.
Historically, June in Hong Kong is characterised by above-normal temperatures, with recent years seeing peaks exceeding 34.6°C and even 34.8°C during extreme heat events[6][9]. The seasonal forecast for June–August 2026 explicitly predicts above-normal temperatures for Hong Kong, influenced by the current ENSO status and climate models[1][8]. This makes the 0% probability appear contrarian, as the consensus leans toward cooler outcomes while value may sit in betting on the higher temperature range, given the strong seasonal trend.
Traders should monitor the Hong Kong Observatory’s daily weather updates and any extreme heat warnings, as the New Territories have recently hit 37°C during similar conditions[4]. The key dependency is the finalisation of the "Daily Extract" data, which will confirm the absolute maximum temperature. Recent reports of Hong Kong’s hottest day of the year so far at 34.6°C underscore the likelihood of high temperatures in late June[6]. With the settlement window ending on 24 June 2026 at 12:00 UTC, the market’s 0% probability may be misaligned with the forecasted heatwave, offering a potential value spot for contrarian traders.
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Where can I trade this market with the lowest fees?
- On Who Will Win, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Who Will Win 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 does it cost to trade on Who Will Win?
- Zero. Who Will Win 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, Who Will Win triggers a quick verification flow that finishes in minutes.
Trade Highest temperature in Hong Kong on June 24? on Who Will Win
Live order book, 0% fees, USDC settlement in seconds.
Trade on Who Will Win →