Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| 1 | 100% |
| 0 | 0% |
| 2 | 0% |
| 3+ | 0% |
Market context
Donald Trump is set to attend one match at the 2026 FIFA World Cup: the final on 19 July at MetLife Stadium, where he will present the trophy to Spain and Argentina. The White House confirmed his attendance for the grand finale, marking his first appearance at the tournament after skipping the US opener against Paraguay in June [1][2]. Despite earlier speculation that he might appear before the last game, no additional matches have been confirmed, leaving the count at one.
Historically, US presidents rarely attend World Cup matches in person; Trump’s planned final appearance makes him the first sitting US president to do so at a World Cup final [4]. Previous leaders have attended opening ceremonies or select games, but physical attendance during a match remains uncommon. The current 0% YES probability on Polymarket reflects the market’s expectation that Trump will attend zero matches, which contradicts confirmed White House reporting. On-chain, this contract trades in USDC on Polygon using conditional tokens, where a single confirmed attendance would flip the resolution to 1.
Traders should monitor official White House schedules and FIFA announcements for any surprise mid-tournament appearances. Andrew Giuliani, head of the White House World Cup Task Force, previously suggested Trump might attend a match before the final, though no such visit has materialised [7]. With the settlement window ending 20 July 2026 and the final already completed, the resolution source will rely on credible consensus reporting confirming his physical presence during the match. No further catalysts are expected unless an unannounced visit occurs before the August 31 cutoff.
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
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- 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'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.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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 Kalshi UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade How many World Cup matches will Trump attend? on Kalshi UK
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