Over the weekend the Cardinals completed a four-game sweep of the Cubs. It was quite an unexpected outcome. Up to that point the Cardinals had played six games at Wrigley.
They had lost all six.
“Now we gotta go beat those Cubs in Chicago. We haven’t beat ‘em all year in Chicago. We’re gonna beat ‘em this time.” - Adam Wainwright #stlcards
— Jeff Jones (@jmjones) September 18, 2019
Just as Adam Wainwright promised, over they weekend that record regressed toward the mean. The Cardinals swept the Cubs, bringing them to the brink of playoff elimination and clinched a playoff spot for the first time since 2015.