Messi vs Yamal: Who Wins Sunday's World Cup Final? Prediction Markets Give Argentina Just 42% Chance

Argentina and Spain meet Sunday at MetLife Stadium in East Rutherford, New Jersey, for the 2026 World Cup final, and according to prediction markets and sportsbooks alike, Lionel Messi's bid to lead Argentina to a second consecutive title comes in as the underdog, with most odds putting his team's chances of winning at roughly 42%.

According to prediction market Kalshi, where betting volume on the final has surpassed $1.3 billion, Spain holds a 58.7% chance of winning the tournament, compared with 42.4% for Argentina. That gap has remained fairly consistent across multiple sportsbooks in the days leading up to kickoff. BetMGM opened Spain as a -175 favorite to lift the trophy, with Argentina priced as a +125 underdog. FanDuel Sportsbook lists Spain at -148 to win the Cup, with Argentina at +129. Across eight sportsbooks tracked ahead of the match, every operator lists Spain as the favorite in regulation time, though the size of that edge varies depending on the book, with the draw and Argentina's price generally staying close together, a signal that oddsmakers expect a tight, low-scoring contest rather than a lopsided result.

Spain's status as favorite stems largely from its defensive record through the tournament. La Roja have conceded just once in seven matches, a stretch that includes wins over Portugal in the round of 16, Belgium in the quarterfinals, and a 2-0 victory over France in Tuesday's semifinal, secured through a Mikel Oyarzabal penalty. Spain also enters Sunday's final riding a 37-match unbeaten streak dating back to last September, a run that spans both World Cup qualifying and the tournament itself, during which the team has posted 13 wins and four draws while allowing just four goals total.

Argentina, by contrast, has taken a far more dramatic path to the final. Lionel Scaloni's side opened the tournament with three straight group-stage wins over Algeria, Austria and Jordan, before facing a series of tense knockout-round tests. Argentina trailed Egypt by two goals in the round of 16 before rallying to win 3-2, then defeated Switzerland 3-1 in extra time in the quarterfinals. In Wednesday's semifinal against England, Argentina appeared headed for elimination until Enzo Fernández equalized in the 85th minute and Lautaro Martínez scored a stoppage-time winner off a Messi assist, completing a stunning 2-1 comeback. Despite conceding more goals than Spain throughout the tournament, Argentina has outscored opponents 19-7 overall and has found the net in every single match it has played, a streak analysts have pointed to as one of the team's most reliable traits heading into the final.

At the center of the matchup is the individual duel between Messi, 39, and Spain's 19-year-old sensation Lamine Yamal, a storyline that has followed the tournament from its earliest previews. The two are meeting on a World Cup pitch for the first time, adding another chapter to a connection that traces back to a widely circulated photograph, shared by Yamal's father, showing a young Messi cradling a six-month-old Yamal years before either knew what the moment would come to represent.

Messi enters the final still tied with France's Kylian Mbappé for the tournament's scoring lead at eight goals, though Messi currently holds the Golden Boot on the tiebreaker of assists, having recorded one more than Mbappé. Should Argentina win the final and Messi finish with the most goals or the tiebreaker advantage intact, he would become just the fifth player in the tournament's history to win both the World Cup and the Golden Boot in the same edition. FanDuel currently lists Messi's odds to score anytime during the final at +150, the shortest anytime-goalscorer price on the board, reflecting bookmakers' expectation that he remains Argentina's most likely source of offense even at this stage of his career.

Betting analysts covering the match have offered a range of predictions. Squawka's model, which the outlet said had produced a 71% hit rate across 99 settled predictions through the tournament's semifinals, forecasts a narrow 2-1 Spain win, with both teams scoring and Messi finding the net at some point in the match. CBS Sports betting analyst Martin Green, working off a hot recent streak, said he is leaning toward the match staying under 2.5 total goals, citing Spain's stingy defensive record while still cautioning against underestimating Argentina's resilience. "You have to admire Argentina's never-say-die attitude," Green said. "They're also always in with a chance of winning any game when they have Messi in attack."

Not every prediction favors a low-scoring Spain win. Yahoo Sports' betting preview pointed to history working in Argentina's favor when it comes to how these matches tend to unfold, noting that four of the last five World Cup finals have required extra time to settle, and predicting Sunday's match will likewise remain deadlocked through 90 minutes, forecasting a 1-1 draw in regulation. That analysis argued that while Spain has been the tournament's best overall team, the gap may not be wide enough to make Spain a true 90-minute favorite against an Argentina side built specifically to thrive in high-pressure, close-margin moments.

Statistically, Argentina holds a narrow edge in several underlying performance metrics despite entering as the betting underdog, including a tournament-leading 91% passing accuracy, a 55% share of possession across its matches, and a 17% shot-conversion rate, marks that edge out Spain's own numbers in those same categories, according to tournament data. A win for Argentina would make it the first nation to successfully defend a World Cup title since Brazil in 1962, while a Spain victory would deliver the country its second championship, following its lone previous title in 2010.

Kickoff is set for 3 p.m. Eastern time Sunday at MetLife Stadium, with the match broadcast on Fox and Telemundo in the United States. Weather conditions for the final are expected to be favorable, with forecasts calling for a high near 83 degrees, a mix of sun and clouds, light winds and only a modest chance of rain, setting the stage for what oddsmakers, analysts and fans alike expect to be one of the more tightly contested finals in recent World Cup history.