Spain begin the expanded 2026 World Cup as favourites — but only just. Across 25,000 pre-tournament simulations, Opta's supercomputer makes Spain the most likely champions, yet hands them barely a one-in-six chance, with three rivals clustered close behind. On both the data and the betting market, the first 48-team World Cup looks less like a coronation-in-waiting than the tightest title race in years.
Who do the numbers favour?
The Opta model installs Spain at 16.1%, reflecting their Euro 2024 triumph and a midfield built around Pedri, Gavi and Fabián Ruiz. France follow at 13.0%, England at 11.2% and holders Argentina at 10.4%. The bookmakers line up almost identically, with Spain a best-priced 9-2 and the same quartet leading the outright market. "Spain showed steel as well as style at Euro 2024," noted Racing Post's tournament preview, capturing why the model and the market converge on La Roja.
| Team | Opta win % | Outright odds |
|---|---|---|
| Spain | 16.1% | 9-2 |
| France | 13.0% | 5-1 |
| England | 11.2% | 13-2 |
| Argentina | 10.4% | 9-1 |
| Portugal | 7.0% | 8-1 |
| Brazil | 6.6% | 8-1 |
| Germany | 5.1% | 14-1 |
Is this really the most open World Cup in years?
The headline number is how little separates the contenders. Just 5.7 percentage points divide first-placed Spain from fourth-placed Argentina, and even Spain reach the final in only 25.6% of simulations — barely one in four. France project to the final 21.3% of the time. The market spread is just as shallow, with four teams inside 9-1.
The caveats are real. Racing Post's analysis flags France's "structural weaknesses, particularly in central midfield and full-back depth," despite the firepower of Kylian Mbappé and Ousmane Dembélé, and warns that for England, "Declan Rice's heavy workload at Arsenal is a huge concern." No favourite arrives without a question mark — which is precisely why the field looks so level.
Does a bigger field produce a surprise winner?
Not according to the model. Despite 48 teams and a longer road to the final, only 35.9% of Opta's simulations produced a first-time champion — meaning roughly two in three end with an established power lifting the trophy. The extra matches add upset exposure in the group and early knockout rounds, but the elite remain elite once the bracket narrows.
The hosts gain little from home advantage. The United States win the title in just 1.2% of simulations, Mexico in 1.0% and Canada in under 0.5%. For all three co-hosts, a deep run would itself be the story; the trophy is a long shot.
Who is the genuine dark horse?
Norway. Opta ranks them ninth at 3.5% — striking for a side back at a World Cup for the first time since 1998. Erling Haaland scored 16 goals in qualifying, matching Robert Lewandowski's record for a single campaign, as Norway won all 10 matches, scored 37 goals and conceded five — including an 11-1 rout of Moldova and a victory over Italy. Captained by Martin Ødegaard and coached by Ståle Solbakken, they share Group I with France, setting up an early test of whether the firepower travels.
What about the opener?
The tournament begins at Estadio Azteca, the only venue at this World Cup to have staged matches at previous editions — in 1970 and 1986 — making 2026 its third. Mexico, hosting for a third time, open against South Africa, with Opta favouring the hosts in 66.3% of simulations. The sides last met at the 2010 World Cup, drawing 1-1. It is a fitting curtain-raiser: history underfoot, and a heavy favourite who is anything but a certainty.