| Name | Team | Event Name |
|---|---|---|
| Catherine Myung | TCS New York City Marathon | |
| Catherine Riihimaki | Hikers4Life | Hike Yosemite |
| Cathy dePasquale | Team Soar | DIY: Your TEAM, Your Way |
| Cathy Doxey | Team Soar | DIY: Your TEAM, Your Way |
| Cayden Reich | TCS New York City Marathon | |
| Cecelia Keppel | Team Super Spectacular Survivor Susan | TCS New York City Marathon |
| Celeste Lee | Golden Gate Sole Steppers | DIY: Your TEAM, Your Way |
| Chad Bates | Hail Mary Poppins | Walt Disney World Marathon Weekend |
| Channing Pletka | TCS New York City Marathon | |
| Chantal Robertson | Boom Shakalaka | America's Most Beautiful Bike Ride |