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Final update (July 28): The tournament is decided — Spain beat Argentina 1–0 in extra time in the July 19 final to win its second World Cup (CBS News). France, the ~37% quarterfinal-stage favorite below, fell short — a live lesson in what a 37% probability actually means (a 63% chance someone else wins). The analysis below is preserved as a knockout-stage snapshot; for the full market retrospective see How Markets Priced Spain’s Title.
As of early July 2026, the 2026 FIFA World Cup was in the quarterfinal round — with prediction markets and sportsbooks pricing a wide-open race. This page explains the semifinal and championship odds as they stood, converts them to plain-English probabilities, and shows how prediction-market prices differ from sportsbook lines.

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Quick Answer

Heading into the 2026 World Cup quarterfinals (early July), the championship favorites are France, Argentina, England, and Spain. Per ESPN and FOX Sports, France leads the futures board around +170, with Argentina near +425 and England around +520.Converted to implied probability, that’s roughly:Prediction markets price the same question as a live, tradeable probability — and often differ from the sportsbook number because there’s no built-in house margin. If you want to trade the tournament rather than take a fixed line, that’s the core difference. Live board: app.opinion.trade/world-cup.Verified 2026-07-09. Odds shift every match — see Sources & References.

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Where the 2026 World Cup Stands

The knockout stage has already produced upsets. Per FOX Sports reporting:
  • Norway upset Brazil to reach the quarterfinals for the first time in its history.
  • England beat Mexico at Estadio Azteca in one of the tournament’s most dramatic games.
  • France beat Sweden 3–0, then edged Paraguay 1–0 on a Kylian Mbappé penalty to reach the quarterfinals.
  • Spain eliminated Portugal to join the last eight.
England’s title odds shortened sharply — from around 10–1 to roughly +520 — after those results, per FOX Sports, putting them behind only France and Argentina among the favorites.

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How to Read the Odds (Sportsbook → Probability)

Sportsbook futures are quoted in American odds. Converting them to a probability is simple:
  • Positive odds (+170): implied probability = 100 ÷ (odds + 100) → 100 ÷ 270 = 37%.
  • Negative odds (-180, e.g. a top team to reach the semifinals): implied probability = odds ÷ (odds + 100) → 180 ÷ 280 = 64%.
One catch: add up every team’s implied probability and it sums to more than 100%. That excess is the sportsbook’s overround (vig) — its built-in margin. On a prediction market, prices are set by trades between users, so once you back out the spread the probabilities sum much closer to 100%. That’s why the same event can read as “37% France” on a prediction market but price as +170 (which bakes in the house edge) at a book. For the full contrast, see Prediction Markets vs Sportsbooks for the World Cup.

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Prediction Markets vs Sportsbooks: The Semifinal Read

The practical edge of a prediction market during a live tournament: you can trade the swings. If France’s price jumps from 30% to 40% after a quarterfinal win, you can close the position and lock the move without waiting for the final. A sportsbook future is settled only when the tournament ends.

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Championship Odds → Implied Probability (Top Four)

Using the illustrative futures above and the conversion formula: Independent modeling (e.g. Nate Silver’s knockout predictions) tends to cluster the top four similarly, with France ahead and daylight to the chasing pack. When a model’s probability and the market price diverge, that gap is where traders look for value.

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Why This Tournament Is a Prediction-Market Moment

The 2026 World Cup is the single biggest sports event prediction markets have ever priced. Per CNBC, the tournament has driven record volume across the category — the World Cup Winner contract has out-traded March Madness. For a first-time user, a marquee, well-understood event is the easiest place to learn how a probability market actually behaves. If you want to trade the semifinals rather than take a fixed line, Opinion runs a dedicated 2026 World Cup hub with tournament winner, per-match, and Golden Boot markets — with web2-style onboarding and some of the lowest effective fees in the sports category (what is Opinion?). For a full snapshot of the winner market, see our World Cup 2026 Winner Odds tracker. Educational only — not investment or gambling advice. Availability and product rules vary by jurisdiction.

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What to Watch

  • Odds move every match. Treat every number here as a snapshot. The value is in the gap between a model’s probability and the live market price.
  • Overround vs true probability. Sportsbook lines sum to >100%; back out the vig before comparing to a prediction-market price.
  • Liquidity concentrates on the winner market. Per-match markets can be thinner — check depth before trading size.
  • The final weekend. As the field narrows to four, prices sharpen fast; the biggest swings happen right after each quarterfinal and semifinal result.

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FAQ

As of early July 2026 (quarterfinal stage), France is the clear favorite at roughly +170 (~37% implied), ahead of Argentina (~19%), England (~16%), and Spain, per ESPN and FOX Sports. Odds shift every match.
The top four (France, Argentina, England, Spain) are each favored to reach the semifinals, priced around -180 or shorter per FOX Sports — roughly a 64% implied chance at -180. Convert American odds to probability with odds ÷ (odds + 100) for negative lines.
Prediction-market prices are set by trades between users, so they read as a live probability with no built-in house margin. Sportsbook lines bake in the overround (vig), which is why every team’s implied probability sums to more than 100%. See Prediction Markets vs Sportsbooks.
Prediction markets including Opinion offer live World Cup markets. Opinion’s 2026 World Cup hub covers tournament winner, per-match, and Golden Boot markets with web2-style onboarding.
Yes — Norway eliminated Brazil to reach its first-ever quarterfinal, and England beat Mexico at Estadio Azteca, per FOX Sports. Upsets like these cause the sharpest prediction-market price swings.

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Sources & References

  1. FOX Sports — 2026 World Cup semifinal odds — Semifinal reach odds and top-4 favorites
  2. ESPN — Every team’s 2026 World Cup championship odds — Championship futures odds (France, Argentina, England)
  3. Nate Silver — 2026 World Cup knockout predictions — Independent model probabilities for the knockout stage
  4. CBS News — Spain wins 2026 FIFA World Cup — Final result: Spain 1-0 Argentina (aet), July 19
  5. CNBC — 2026 FIFA World Cup boosts prediction market volumes — World Cup driving prediction-market volume
All sources verified 2026-07-28. Prediction-market terms change frequently — verify against each platform’s current documentation before treating these numbers as decision-quality data. Editorial content, not investment or gambling advice.