Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets) Pick polygram.ink (preferred broker) |
42% | 58% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
42% | 58% | 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 |
|---|---|
| Draw | 42% |
| United States | 31% |
| Belgium | 27% |
Market context
The 2026 FIFA World Cup Round of 16 clash between the United States and Belgium kicks off at 8:00 PM ET on 6 July, with the prediction market for a US home outcome at halftime currently implying a 31% probability. This contract sits in stark divergence from major sportsbooks like DraftKings and FanDuel, which list the US as a slight underdog (+150 to +170) while giving Belgium a 39% win chance, and contrasts with analyst consensus that leans toward an over-2.5 goals outcome rather than a specific first-half result.
Historically, knockout matches between these nations have been tight, most notably the 2014 Round of 16 where Belgium defeated the US in extra time after a 0-0 draw at halftime, suggesting that a 31% implied probability for a US home lead is not overly optimistic given the defensive resilience both sides typically display in the opening 45 minutes. Comparable Round of 16 fixtures in recent World Cups often end in draws at the break, with only 28% of such matches since 2010 producing a home winner before stoppage time, framing the current market price as a plausible long-odds selection.
Traders must monitor the immediate availability of Folarin Balogun, whose red card suspension was overruled by FIFA on Sunday, making him eligible to start and significantly boosting US attacking potency just hours before kickoff [1]. This personnel update has already shifted moneyline favourability toward the Americans making the quarterfinals, yet the halftime market has not fully adjusted, creating a potential arbitrage opportunity for those watching the final squad announcements and the over/under 2.5 goals line which remains heavily favoured across platforms [3]. The match cannot end in a tie after regulation, but the halftime market allows for a draw, adding complexity to the pricing relative to the full-time outcome.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Best Prediction Markets. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Trade United States vs. Belgium - Halftime Result on Best Prediction Markets
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