Complex sentence: Murphy would set team and MLB records for consecutive homruns hit in the post season, almost single-handedly out scoreing the Cubs in the series and helping the Mets defeat the Cubs in a four game sweep on October 21,2015.
Split into simpler sentences: Murphy would set team and MLB records for consecutive home runs in the post season. Murphy himself almost single-handedly out scored the Cubs in the series helping the Mets defeat the Cubs in a four game sweep on October 21,2015.