The National League holds a clear edge in the 2026 World Series league market, with traders assigning it roughly two-thirds probability. Milwaukee’s league-best 103-59 record and early 2-0 NLCS lead over the Dodgers highlight superior regular-season depth and current form, while Los Angeles’s 100-62 mark and strong rotation provide additional NL strength. In contrast, the American League’s final two teams—the Rays at 98-64 and the Guardians at 85-77—carry lighter regular-season résumés and face a more uncertain ALCS matchup. The NL’s concentration of top talent and proven postseason momentum explain the market’s consensus ahead of the October 23 start.