| Name | Team | Event Name |
|---|---|---|
| Idania Mongeotti | Walt Disney World Marathon Weekend | |
| Imaide Steverango | Bank of America Chicago Marathon | |
| Impact to Ride Only AMBBR Onsite | America's Most Beautiful Bike Ride | |
| Ireland Jacobsen | TCS New York City Marathon | |
| Isa Salazar | Bank of America Chicago Marathon | |
| Isabella Carlman | Walt Disney World Marathon Weekend | |
| Isabella Esposito | TCS New York City Marathon | |
| Isabella Spitznagle | Isabella and Olivia | Bank of America Chicago Marathon |
| Isabelle Palmer | Bloody Idiots | TCS New York City Marathon |
| Issa Suarez | Bank of America Chicago Marathon |