Erin Sumfleth has 3 recorded races from Arlington, Massachusetts, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-10-11 | Cape Cod Marathon Weekend Events Lobstah Challenge | 2:13:40 | 19 | |
| 2025-10-11 | Cape Cod Marathon Weekend Events Half Marathon | 1:41:59 | 170 | |
| 2023-10-07 | SouthCoast Wind Cape Cod Marathon Weekend Half Marathon | 1:53:31 | 314 |