World Cup Group B Winner

Platform comparison

Active sub-markets

Market context

The 2026 FIFA World Cup group stage runs 11–27 June, with Group B's winner determined by points, goal difference, and head-to-head records under FIFA's standard tiebreak rules. The 28% implied probability reflects genuine uncertainty around which of the four group teams will finish first—a relatively even distribution of backing across multiple contenders rather than consensus around a single favourite.

Historical World Cup group outcomes show that pre-tournament seeding and qualification strength correlate weakly with group-stage dominance once matches begin. Upsets and fixture congestion routinely alter expected hierarchies; the 2022 Qatar tournament saw several seeded teams eliminated at the group phase despite favourable draws. Group B's composition will determine whether the market tightens around a clear leader or remains fragmented. The current 28% probability suggests the market has identified no single team as commanding favourite—typical for groups containing two or three competitive sides with overlapping strength assessments.

Traders should monitor official FIFA group assignments (expected by late 2025), squad announcements, and injury updates through spring 2026. Fixture scheduling within the group window matters: teams playing stronger opponents earlier face different momentum dynamics than those peaking in final matches. Deposit friction via Klarna's SEPA rails or direct USDC settlement will influence how quickly capital flows into this market once groups are confirmed and betting syndicates begin positioning. Recent regulatory clarity on UK prediction markets (as of 2024–2025) has improved withdrawal certainty, potentially deepening book depth as the tournament approaches.

Methodology

We track World Cup Group B Winner on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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

Is this market available outside the US?

Polymarket Klarna UK 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'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 it cost to trade on Polymarket Klarna UK?

Zero. Polymarket Klarna UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.