Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
6% | 94% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
6% | 94% | 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 |
|---|---|
| September 30 | 6% |
| August 31 | 2% |
Market context
The market is really a test of **territorial control**, not whether the islands are mentioned in rhetoric or briefly affected by military activity. Farsi is the clearest reference point: it is a tiny Iranian island with an IRGC Navy base and public access restrictions, and past incidents there, including the 2016 detention of US sailors, showed how quickly a local encounter can raise headlines without changing sovereignty or control.[1][14][15]
That history is why the current **2%** implied probability looks consistent with a very high bar. Comparable cases in the Gulf tend to involve temporary interdictions, seizures, or signalling around chokepoints rather than one state actually taking and holding an island; the market wording also excludes raids, isolated landings, sabotage, or temporary disruption unless another authority establishes primary control.[12] On that framing, the relevant precedent is not whether tensions rise around the islands, but whether an occupying force, negotiated transfer, or internationally backed authority is visibly on the ground and governing.
For traders, the main catalysts are any **formal military or political announcements**, evidence of a sustained deployment, or a documented transfer of authority over one of the four islands. Absent that, moves in the Strait of Hormuz, shipping incidents, or broader Iran–Gulf tensions are more likely to move sentiment than the resolution outcome itself. Hormuz and Kharg matter because they sit inside a wider oil-and-security context, but under this market definition they only count if control of the island itself changes, not if surrounding waters become contested.
Methodology
Sports-specific comparison page for Farsi, Hengam, Hormuz or Kharg Island no longer under Iranian control by 2026?. 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.
- 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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