The next season, the Portage Lakes Hockey Club of Houghton, Michigan began a professional league which continued to play professional exhibition game against the WPHL's Pittsburgh Bankers. However the exposure given by playing Portage Lakes raised the profiles of some of the Pittsburgh players, who were lured away after the season for the promise of better pay in Michigan. The team soon raided Pittsburgh’s teams for top players like Riley Hern and Bruce Stuart. This led the Keystones to withdraw from the league on January 17, 1904. Their players were then redistributed among the three other WPHL teams.
