| Name | Team | Event Name |
|---|---|---|
| Cary Metz | Kiss Cancer Goodbye | America's Most Beautiful Bike Ride |
| Caryl Coronis | Hike Yosemite | |
| Casey Campbell | Walt Disney World Marathon Weekend | |
| Casey Duncan | Team DDP takes on Yosemite | Hike Yosemite |
| Casey Fearns | TCS New York City Marathon | |
| Casey Jackman | TCS New York City Marathon | |
| Cassandra Giner | Bank of America Chicago Marathon | |
| Cassandra Sarmento | Dylan’s Vikings | Walt Disney World Marathon Weekend |
| Cassi Wagemann | Walt Disney World Marathon Weekend | |
| Cassidy Conlan | Mile High Marrow-thoners | TCS New York City Marathon |