The Sheboygan Red Skins and Waterloo Hawks both claimed the championship because they were each in first in their divisions at the end of the season, but they never met in a playoff series, due to demise of the league.
The 1951 Waterloo Hawks, coached by Jack Smiley, missed the playoffs after finishing the NPBL regular season in 2nd place in the Western Division with a 32-24 record.