American soccer writing, history & data.
| League | Years |
|---|---|
| Baltimore Unlimited Soccer League Lineage | 1952-present |
| Lineage: Baltimore Unlimited Soccer League | Related leagues: National Soccer League, National Unlimited Soccer League | |
| Canadian National Soccer League Lineage | 1926-1997 |
| Lineage: Canadian National Soccer League | Related leagues: National Soccer League, National Soccer League, National Soccer League, National Soccer League, Second Division | |
| Major Indoor Soccer League Lineage | 2008-2014 |
| Lineage: Major Indoor Soccer League | Related leagues: National Indoor Soccer League | |
| National Association Football League | 1895-1900 |
| National Association Football League | 1906-1921 |
| National Independent Soccer Association | 2019-2024 |
| National Indoor Soccer League | 2008-2009 |
| Lineage: Major Indoor Soccer League | |
| National Premier Soccer League Lineage | 2003-present |
| Lineage: National Premier Soccer League | Related leagues: National Premier Soccer League | |
| National Premier Soccer League | 2005-present |
| Lineage: National Premier Soccer League | |
| National Professional Soccer League | 1967-1967 |
| Lineage: North American Soccer League | Related leagues: North American Soccer League, North American Soccer League Budweiser Indoor Soccer Invitational, North American Soccer League Grand Prix of Indoor Soccer, North American Soccer League Indoor League, North American Soccer League Indoor Tournament, North American Soccer League Professional Hoc-Soc Tournament | |
| National Professional Soccer League | 1984-2001 |
| National Soccer League | 1924-present |
| National Soccer League | 1926-1941 |
| Lineage: Canadian National Soccer League | Related leagues: National Soccer League, Second Division | |
| National Soccer League | 1946-1978 |
| Lineage: Canadian National Soccer League | Related leagues: National Soccer League, Second Division | |
| National Soccer League | 1952-1953 |
| Lineage: Baltimore Unlimited Soccer League | Related leagues: National Unlimited Soccer League | |
| National Soccer League | 1979-1992 |
| Lineage: Canadian National Soccer League | Related leagues: National Soccer League, Second Division | |
| National Soccer League, Second Division | 1975-1978 |
| Lineage: Canadian National Soccer League | Related leagues: National Soccer League, National Soccer League, National Soccer League | |
| National Unlimited Soccer League | 1953-1954 |
| Lineage: Baltimore Unlimited Soccer League | Related leagues: National Soccer League | |
| National Women's Soccer League | 2013-present |
| New England Soccer League | 1914-1924 |
| North American Soccer Football League | 1946-1947 |
| North American Soccer League Lineage | 1967-1985 |
| Lineage: North American Soccer League | Related leagues: National Professional Soccer League, North American Soccer League, North American Soccer League Budweiser Indoor Soccer Invitational, North American Soccer League Grand Prix of Indoor Soccer, North American Soccer League Indoor League, North American Soccer League Indoor Tournament, North American Soccer League Professional Hoc-Soc Tournament | |
| North American Soccer League | 1968-1985 |
| Lineage: North American Soccer League | Related leagues: National Professional Soccer League, North American Soccer League Budweiser Indoor Soccer Invitational, North American Soccer League Grand Prix of Indoor Soccer, North American Soccer League Indoor League, North American Soccer League Indoor Tournament, North American Soccer League Professional Hoc-Soc Tournament | |
| North American Soccer League | 2011-2017 |
| North American Soccer League Budweiser Indoor Soccer Invitational | 1979-1979 |
| Lineage: North American Soccer League | Related leagues: National Professional Soccer League, North American Soccer League, North American Soccer League Grand Prix of Indoor Soccer, North American Soccer League Indoor League, North American Soccer League Indoor Tournament, North American Soccer League Professional Hoc-Soc Tournament | |
| North American Soccer League Grand Prix of Indoor Soccer | 1983-1983 |
| Lineage: North American Soccer League | Related leagues: National Professional Soccer League, North American Soccer League, North American Soccer League Budweiser Indoor Soccer Invitational, North American Soccer League Indoor League, North American Soccer League Indoor Tournament, North American Soccer League Professional Hoc-Soc Tournament | |
| North American Soccer League Indoor League | 1979-1984 |
| Lineage: North American Soccer League | Related leagues: National Professional Soccer League, North American Soccer League, North American Soccer League Budweiser Indoor Soccer Invitational, North American Soccer League Grand Prix of Indoor Soccer, North American Soccer League Indoor Tournament, North American Soccer League Professional Hoc-Soc Tournament | |
| North American Soccer League Indoor Tournament | 1975-1976 |
| Lineage: North American Soccer League | Related leagues: National Professional Soccer League, North American Soccer League, North American Soccer League Budweiser Indoor Soccer Invitational, North American Soccer League Grand Prix of Indoor Soccer, North American Soccer League Indoor League, North American Soccer League Professional Hoc-Soc Tournament | |
| North American Soccer League Professional Hoc-Soc Tournament | 1971-1971 |
| Lineage: North American Soccer League | Related leagues: National Professional Soccer League, North American Soccer League, North American Soccer League Budweiser Indoor Soccer Invitational, North American Soccer League Grand Prix of Indoor Soccer, North American Soccer League Indoor League, North American Soccer League Indoor Tournament | |