Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
5% | 95% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
5% | 95% | 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 → |
Market context
Shipping traffic through the Strait of Hormuz has surged to its highest level in two months following a deal to halt the US-Iran war, with 25 commercial vessels crossing on Thursday—more than three times the daily average recorded since early March[1]. However, the strait remains effectively closed as commercial shipping was suspended after a brief reopening, and tensions persist despite the agreement[5]. Historical precedents show that even after ceasefire deals, full restoration of transit calls to pre-war levels often stalls due to lingering security fears and unverified mine threats, which aligns with the current 5% crowd-implied probability of normal traffic returning by July 31.
Traders should monitor the US naval blockade lift deadline of July 19, a prerequisite in the June 17 memorandum of understanding that guarantees immediate commercial navigation commencement[3]. The agreement requires Iran to exert "best efforts" to restore traffic to pre-war levels within the same timeframe, though it does not clarify Iran’s ultimate authority over the strait or whether tolls may be reinstated after the 60-day toll-free window[3]. Recent reports indicate Iran has implied it may have laid mines and continues to demand permits for passage, creating a dependency on successful de-mining operations and permit normalisation before IMF Portwatch can record a 7-day moving average of 60 transit calls[4][6].
Methodology
Sports-specific comparison page for Strait of Hormuz traffic returns to normal by July 31?. 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
- 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.
- 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.
- 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.
- 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 Strait of Hormuz traffic returns to normal by July 31? on March Madness Predictions
Live order book, 0% fees, USDC settlement in seconds.
Open live market →