Spain1:0Argentina
We assess a slight edge for Spain in this World Cup final based on multiple factors: first, Spain has no confirmed injury issues for core starters, while several key Argentine players have unresolved fitness doubts that may hamper their performance. Second, both teams are in excellent knockout form, but Spain's high-possession tactical system is well positioned to limit the transition opportunities that are Argentina's primary attacking threat. The implied win probability for Spain from the odds is ~41%, while our adjusted fair probability accounting for fitness and tactical matchup is 45%, delivering a small positive expected value for the home win selection. The stake is set at a moderate level to account for the high variance inherent to a one-off knockout final.