A month and a half ago, when the 2014 baseball season was just wrapping up, the Cubs were 50-to-1 to win the next World Series.

The line moved drastically after Joe Maddon’s hiring last month, plummeting to 20-to-1.

On Wednesday, after the overnight signing of Jon Lester, the Cubs are now 10-to-1 to win a title next season, according to the MLB futures on VegasInsider.com.

ESPN’s Darren Rovell tweeted Wednesday morning that one sportsbook had the Cubs at 12-to-1.

Jon Lester signing moves Cubs odds to win title from 18/1 to 12/1 @LVSuperBook — Darren Rovell (@darrenrovell) December 10, 2014

The Cubs have gone from 50-to-1 to 10-to-1 in the span of six weeks.

VegasInsider.com lists the Cubs at 5-to-1 to win the National League Pennant, trailing only the Dodgers and Nationals at 13-to-4.

The White Sox signings haven’t had nearly the effect as those of the Cubs. The Sox entered the offseason at 45-to-1 and are now 40-to-1.

>>FOR JOE MADDON, IT ALL STARTED AT HOME