Amateur

• Team One Baseball
  Scouts baseball's high school, college and minor league players and compiles information on the annual Baseball Draft.
• National Adult Baseball Association
  NABA amateur baseball organization information, including tournament results, events and how to join.
• American Amateur Baseball Congress
  Coordinates play among US leagues in seven age brackets, from sub-teens through adults. Includes rules, tournament dates, and list of regions and age divisions.
• Over 50 Baseball
  Promoting an affordable week-long fantasy-camp type fun tournament in Las Vegas each October. Also promoting the establishment of local leagues nationwide.
• Vintage Base Ball Association
  Listing of rules, tournaments, members and contact information.
• Roy Hobbs Adult Baseball
  Amateur baseball organization for adults over the age of 28.