Organizers
- Roc Solid Foundation
- Roca Motion
- Rochester Area Neighborhood House
- Rochester Area Triathletes
- Rochester Catholic Schools
- Rochester Public Library District
- Rochester Rotary Sunshine Camp
- Rock ‘n’ Kids, Inc.
- Rock Academy Summer Camps
- Rock and Roll Academy
- Rock and Roll Academy Roaring Fork
- Rock Climb Every Day, LLC
- Rock Creek 5k Run/Walk & Astro Dash 1k
- ROCK CREEK TENNIS CENTER
- Rock Garden Music School
- Rock Hill Striders
- Rock It Racing
- Rock Lake Activity Center
- Rock Lake Christian Assembly
- Rock 'n' Roll Camp for Girls
- Rock 'n' Roll Marathon
- Rock 'n' Roll Marathon Series
- Rock 'n' Roll Running Series USA
- Rock n Rope Adventures
- Rock Recovery
- Rock Solid Fitness
- Rock to the Future
- Rock to the Future Inc.
- Rock Valley Recreation
- RockapulcoRun
- Rockaway Track Club / RockapulcoRun
- Rockbrook Pool Association
- Rockdale Magnet School for Science and Technology
- Rockdale School
- Rockers & Rattlers Fastpitch Softball
- Rockers Softball
- Rockers/Rattlers
- Rocket Race
- Rocket Runner's 5k
- Rocketrace
- ROCKETSHIP SPORTS
- Rockford Mean Machine
- Rockford Wildcats
- Rockhaven Camp and Retreat Center
- Rockin' River Fest
- Rockin Runners
- Rockingham County Tennis Association (RCTA)
- Rockland Community Sailing
- Rockland Lake Golf Course
- Rocklin Golf Academy
