| Name | Team | Event Name |
|---|---|---|
| Ian Madden | The All Madden Team | Walt Disney World Marathon Weekend |
| Ian Taylor | Team Taylor | Bank of America Chicago Marathon |
| Ian Temple | TCS New York City Marathon | |
| Idania Mongeotti | Walt Disney World Marathon Weekend | |
| Imaide Steverango | Bank of America Chicago Marathon | |
| Ireland Jacobsen | TCS New York City Marathon | |
| Isa Salazar | Bank of America Chicago Marathon | |
| Isaac Frost | TCS New York City Marathon | |
| Isabella Carlman | Walt Disney World Marathon Weekend | |
| Isabella Esposito | TCS New York City Marathon |