Race Group/Teams
| Group | Group Type | Group Restrictions | Created | No. of Members |
|---|---|---|---|---|
| 3 of Hearts Join | Open Division | Monday August 31, 2026 | 3 | |
| Ambulatio Arantius Join | Open Division | Monday August 17, 2026 | 1 | |
| ASLRun Riverside Join | Open Division | Sunday August 30, 2026 | 2 | |
| Azusa Pacers Join | Open Division | Thursday March 26, 2026 | 4 | |
| Batin Crew Join | Open Division | Thursday August 20, 2026 | 1 | |
| Beast Pacing Join | Open Division | Wednesday August 26, 2026 | 1 | |
| Black Girls Run Join | Open Division | Sunday August 16, 2026 | 2 | |
| CA Cruisers/642 Join | Open Division | Sunday May 10, 2026 | 11 | |
| Cheeky Wombats & Wiley Coyotes Join | Open Division | Saturday August 29, 2026 | 3 | |
| D.N.F. Join | Open Division | Sunday May 10, 2026 | 4 | |
| Decadent Dads Join | Open Division | Thursday May 14, 2026 | 1 | |
| Fit4Mom Riverside Join | Open Division | Sunday August 30, 2026 | 3 | |
| Gains and Glory Join | Open Division | Friday August 14, 2026 | 7 | |
| Invincible Join | Open Division | Monday April 6, 2026 | 4 | |
| Juicers Join | Open Division | Sunday May 10, 2026 | 6 | |
| Jw's Join | Open Division | Monday May 11, 2026 | 1 | |
| LAB RUNNERS Join | Open Division | Monday August 24, 2026 | 11 | |
| Living for Linda Join | Open Division | Wednesday April 29, 2026 | 1 | |
| Mejia Family Join | Open Division | Sunday August 30, 2026 | 4 | |
| MISSION POSSIBLE Join | Open Division | Wednesday May 13, 2026 | 2 | |
| OTFCORONA Join | Open Division | Saturday August 22, 2026 | 1 | |
| Pura Vida Join | Open Division | Sunday August 30, 2026 | 2 | |
| Red Panda Race Team Join | Open Division | Monday August 31, 2026 | 3 | |
| Redlands Ruunrs Join | Open Division | Monday August 24, 2026 | 1 | |
| Riverside Craft Runners Join | Open Division | Wednesday June 24, 2026 | 5 | |
| Riverside Front Runners & Walkers Join | Open Division | Saturday August 29, 2026 | 2 | |
| Road Scholars Join | Open Division | Wednesday July 1, 2026 | 4 | |
| Run for fun!✨️ Join | Open Division | Saturday July 25, 2026 | 1 | |
| Run Riverside Join | Open Division | Wednesday April 29, 2026 | 12 | |
| RunningBesties Join | Open Division | Friday May 22, 2026 | 29 | |
| RunSB Join | Open Division | Saturday August 29, 2026 | 2 | |
| South Coast Roadrunners Join | Open Division | Thursday May 14, 2026 | 0 | |
| Sprinkles Join | Open Division | Wednesday June 17, 2026 | 1 | |
| SRTT Eastvale Join | Open Division | Saturday May 9, 2026 | 6 | |
| Stanzas and Strides Join | Open Division | Sunday June 7, 2026 | 2 | |
| Strasbourg Sprinters Join | Open Division | Monday August 31, 2026 | 2 | |
| Team Joel Join | Open Division | Friday August 14, 2026 | 1 | |
| Team Lara Join | Open Division | Saturday July 25, 2026 | 2 | |
| Team Mellor Join | Open Division | Thursday July 2, 2026 | 1 | |
| The Coffee Beans Join | Open Division | Sunday May 10, 2026 | 2 | |
| The Hustle and the Muscle Join | Open Division | Sunday May 3, 2026 | 9 | |
| Trubliss Fitness Join | Open Division | Saturday May 9, 2026 | 10 | |
| Tutus R Us Join | Open Division | Sunday May 10, 2026 | 3 | |
| Whittier Pacers Join | Open Division | Friday August 14, 2026 | 2 | |
| Williams Fam Bam Join | Open Division | Friday August 14, 2026 | 2 |
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Register & Create Group/Team