Pete Crow-Armstrong joined the 40-40 club on Thursday.

He stole his 40th base.

He also has 45 home runs, the most in the major leagues.

The Chicago Cubs beat the Miami Marlins 2-1.

The Cubs also clinched a spot in the postseason for the second year in a row.

Seiya Suzuki hit a home run for the Cubs (88-71).

The Cubs got one of the NL's three wild card spots.

Chicago was also a wild card last year.

The Cubs beat San Diego in the first round.

Then they lost to Milwaukee in a Division Series.

This is their first time making the postseason two years in a row since 2015-18.

They made it four years in a row back then.

They won the championship in 2016.

That was their first title since 1908.

Crow-Armstrong is a favorite to win the NL MVP award.

He became the seventh 40-40 player.

This group includes Shohei Ohtani and Ronald Acuña Jr.

Jose Canseco was the first, with the 1988 Oakland Athletics.

Crow-Armstrong is 24 years old.

He walked in the first inning.

Then he stole second on the next pitch.

Fans chanted "MVP" when the Wrigley Field videoboard announced what he did.

Matthew Boyd (10-5) allowed one run and five hits over seven innings.

Ryan Zeferjahn pitched a perfect ninth inning.

He got his seventh save.

Ian Happ hit a triple in the sixth inning.

Then he scored on Nico Hoerner's single.

This broke a 1-1 tie.

Miami (78-81) will have a losing season for the third year in a row.