Amateur
- 41
- Vintage Base Ball Federation
- Organization of federated clubs, with news, member forum and information on the World Series of vintage base ball.
- 43
- Westfield Wheelmen Vintage Base Ball Club
- Club out of Westfield, Massachusetts provides its season schedule, game photos, team roster, club history, sponsors and related information.
- 47
- South Hill Clapping Chimps
- Washington State site with Puyallup area tournament information, roster and contacts.
- 49
- LondonWiffleball
- Annual tournament held in London, Ohio. Includes photos, history, field directions, rules, prior year results, and related links.
- 50
- NABA SoCal
- Competitive and recreational baseball for men and women, includes news, schedules, policies, and league information.
- 51
- North County San Diego MSBL
- Adult amateur baseball league playing in Northern San Diego County. Broken down into four age divisions.
- 53
- San Francisco Bay Area MSBL
- Senior men's baseball league. Includes standings, schedule, statistics, and news.
- 55
- Boston Park League Baseball
- Amateur league, team information including schedules, statistics, rosters, highlights and standings.
- 56
- St. Louis Men's Senior Baseball League
- Baseball league with 20 teams (8 28+ and 12 38+). Includes schedule, news, field locations, and contact information.
- 57
- Tri-County League
- Adult team statistics, standings, schedules, rosters, local weather and field directions.
- 58
- Sioux Empire Baseball Association
- Non-profit organization providing local leagues, complexes and contacts.