Nobody in Mets history has hit more home runs in a single season than rookie Pete Alonso has.
In the bottom of the fourth inning during the Mets' contest against the Cubs on Tuesday night, Alonso homered right off Yu Darvish for his 42nd home run of the season, breaking New York's franchise record and giving the team a 1–0 lead.
With his 42nd HR, @Pete_Alonso20 has set a new @Mets record for HR in a season.
He is the 1st rookie to set a new team record for HR since 1938.