Frederick Diemer has 2 recorded races from Portsmouth, New Hampshire, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-04-13 | Schneider Electric Marathon de Paris 2025 — Schneider Electric Marathon de Paris | Marathon | 3:20:40 | 5963 |
| 2023-06-10 | Market Square Day 10K 10K Run | 50:32 | 157 |