| Name | Team | Event Name |
|---|---|---|
| Casey McDonald | Bleecker Run Club | TCS New York City Marathon |
| Cassandra Sarmento | Dylan’s Vikings | WALT DISNEY WORLD Marathon Weekend |
| Cassi Wagemann | WALT DISNEY WORLD Marathon Weekend | |
| Cassie Giner | Bank of America Chicago Marathon | |
| Catherine Myung | Pfizer | TCS New York City Marathon |
| Catherine Naughton | Bank of America Chicago Marathon | |
| Catherine Riihimaki | Hikers4Life | Hike Yosemite |
| Caybel Cunningham | 53 Digital Consulting | WALT DISNEY WORLD Marathon Weekend |
| Caylee Cook | Hike Yosemite | |
| Celeste Lee | Golden Gate Sole Steppers | DIY: Your TEAM, Your Way |