Kallum Morris has 4 recorded races from GB.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-04-13 | Schneider Electric Marathon de Paris 2025 — Schneider Electric Marathon de Paris | Marathon | 3:57:34 | 22555 |
| TCS London Marathon 2026 | Marathon | 3:43:49 | 14074 | |
| TCS London Marathon 2024 | Marathon | 3:50:22 | 16889 |