Claim: During the 1873 season, the Baltimore Marylands played their first and only season as a member of the National Association of Professional Base Ball Players, while the Philadelphia White Stockings held the best regular season standing with 43 wins and 16 losses, followed by the Baltimore Canaries, and New York Mutuals with records 36-17 and 34-22 respectively.
Evidence: Philadelphia White Stockings 36