Organizers
- Royal Racing LLC
- Royal Soccer Training
- Royal Sporting Group
- Royal Vista Golf Club
- Royalty Sports complex
- Royce Brook Golf Academy
- Roycemore School
- RPUS Walk
- RRXFitness 1st Annual Stride For Life 5k - benefiting St.Jude Children's Research Hospital
- RSG1 Foundation
- RSPCA NSW
- RSPCA Queensland
- RSPCA SA
- RSPCA Tasmania
- RSPCA Victoria
- RSPCA Western Australia
- RSU 5 Recreation & Community Education
- RSU 5 Recreation and Community Education
- RSY-Netzer
- RT Events
- RT SPORTS
- RTaylor Golf
- Rubick Run
- RUBICON RACE
- Rubio Long Snapping
- Ruble Triathlon
- Ruby Hill Aquatics
- Ruby Ranch Barn
- Ruck to Remember
- Rudi Foundation
- rudyard lions
- Rudyard Pool Committee
- Ruffin McNeill Football Camp LLC
- RUFIT
- Rufus Racing
- Rugby & Northampton AC
- Rugrats Soccer Club
- Ruidoso Little League
- Rumford Little League
- Run & Ride
- Run & Roll for the Dole
- RUN 10 FEED 10
- Run 2 Be Fit
- Run 2 Give Foundation
- Run 4 Cover LLC
- Run 4 Greeley
- Run 4 Kids
- Run 4 Shelter Half Marathon, 10K, 5K, 2 Mile Walk and Kids Crab Run
- Run 4 Wales
- Run Across Illinois
