In the race for the World Series, the Boston Red Sox (+4890) and Chicago Cubs (+1400) are separated by a notable gap. The implied probabilities — 2.0% and 6.7% respectively — tell the story of how the market views these two contenders.
Since the start of the 2026 season, the Boston Red Sox have drifted from +1640 to +4890, while the Chicago Cubs have shortened from +1870 to +1400.
The market currently gives the Chicago Cubs the edge at +1400, while the Boston Red Sox sit at +4890. Both teams' full odds history across all tracked sportsbooks is charted above.