01-Racquetball National Associations
- European Racquetball Federation (ERF)
- International Racquetball Federation (IRF)
- International Racquetball Tour
- LADIES PROFESSIONAL RACQUETBALL TOUR
- Military Racquetball Federation
- National Masters Racquetball Association
- United States Racquet Stringers Association
- USA Racquetball
- Women's Senior/Masters Racquetball Association (WSMRA)
- World Outdoor Racquetball (WOR)
02-Racquetball State Associations
- Alabama Racquetball Association
- Arizona Racquetball Association (AZRA)
- Arkansas State Association
- California Nevada Racquetball Association
- Colorado Racquetball Association
- Delaware Amateur Racquetball Association
- Florida Racquetball Association
- Georgia Racquetball Association
- Hawaii Racquetball
- Illinois State Racquetball Association
- Iowa Racquetball Association
- Kansas Racquetball Association
- Louisiana Racquetball Association
- Maryland Washington Racquetball Association (MWRA)
- Michigan Racquetball Association
- Minnesota Racquetball Association
- Missouri Racquetball
- Nebraska State Racquetball Association
- New England Racquetball
- New Jersey Amateur Racquetball
- New Mexico Racquetball
- New York State Racquetball Association
- North Carolina Racquetball Association
- North Dakota Racquetball Association
- Ohio Racquetball Association
- Oklahoma Racquetball Association
- Oregon Racquetball Association
- Pennsylvania State Racquetball Association
- South Carolina Racquetball
- Tennessee Racquetball Association
- Texas Racquetball Association
- Utah Racquetball Association
- Virginia Racquetball Association,
- Washington Racquetball Association
- Wyoming Racquetball Association
04-Racquetball Mail Order
07-Racquetball Instruction
08-Racquetball Pros Homepages
09-Racquetball University Websites