This is a list of developmental and minor sports leagues, two concepts which are largely restricted to North American sports. Note that this does not include teams in leagues that include promotion and relegation.
See main article: List of Minor League Baseball leagues and teams and List of collegiate summer baseball leagues.
MLB Partner Leagues
Affiliated:
Independent:
Pro
Semi-Pro
Outdoor:
High-level
Low-level
Indoor:
High-level
Mid-level
Low-level
Professional: