1870 National Association
The National Association of Base Ball Players played a two-tier system again this season, allowing both amateur and professional teams. Champions at the time were decided in a manner similar to prize-fighting, the champion defending its claim in a three-game match (though not consecutive games). Atlantic of Brooklyn began the season as champions, lost two games in September to the Mutual Club, which in turn lost the championship to the Chicago White Stockings in a series that featured a bitterly contested and controversial game that ended in a Chicago victory by forfeit.
The entire system for determining a champion had been highly criticized by the sporting media for a number of years, and many newspapers published standings between the top teams for the first time. Standings are retroactive, having been compiled by Marshall Wright in his book The National Association of Base Ball Players (1857-1870) of the teams that were made up entirely of professional players.
|vs. Professional teams only||vs. all teams|
|Cincinnati Red Stockings||34||27||6||1||.809||Cincinnati Red Stockings||74||67||6||1||.912|
|Chicago White Stockings||29||22||7||0||.759||Chicago White Stockings||73||65||8||0||.890|
|Athletic of Philadelphia||38||26||11||1||.697||Athletic of Philadelphia||77||65||11||1||.851|
|Mutual (New York)||47||29||15||3||.659||Mutual (New York)||88||68||17||3||.790|
|Atlantic of Brooklyn||36||20||16||0||.556||Forest City (Rockford)||56||42||13||1||.759|
|Union (Lansingburgh, NY)||25||11||13||1||.460||Atlantic of Brooklyn||58||41||17||0||..707|
|Forest City (Rockford)||24||10||13||1||.438||Union (Lansingburgh, NY)||46||30||15||1||.663|
|Forest City (Cleveland)||24||9||15||0||.375||Forest City (Cleveland)||41||25||16||0||.610|
|Olympic (Washington, DC)||28||10||18||0||.357||Olympic (Washington, DC)||50||29||21||0||.580|
|Union (Morrisania, NY)||25||7||18||0||.280||Union (Morrisania, NY)||39||20||19||0||.513|
|National (Washington, DC)||11||2||9||0||.182||Tri-Mountain (Boston)||13||6||7||0||.462|
|Eckford of Brooklyn||15||2||12||1||.143||Eckford of Brooklyn||30||13||16||1||.450|
|Tri-Mountain (Boston)||4||0||4||0||.000||Riverside (Portsmouth, Ohio)||9||3||6||0||.333|
|Riverside (Portsmouth, Ohio)||6||0||6||0||.000||National (Washington, DC)||17||5||12||0||.294|
- Marshall D. Wright: The National Association of Base Ball Players, 1857-1870, McFarland, Jefferson, NC, 2000.