David Joynson has 13 recorded races from GB.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-04-12 | Schneider Electric Marathon de Paris 2026 — Marathon de Paris | Marathon | 3:33:06 | 11110 |
| 2025-04-13 | Schneider Electric Marathon de Paris 2025 — Schneider Electric Marathon de Paris | Marathon | 3:19:53 | 5765 |
| 2024-04-07 | Schneider Electric Marathon de Paris 2024 — Marathon de Paris 2024 | Marathon | 3:26:31 | 8028 |
| 2023-04-02 | Schneider Electric Marathon de Paris 2023 — Running 42.195km | Marathon | 3:11:25 | 4237 |
| TCS London Marathon 2026 | Marathon | 3:31:52 | 10312 | |
| TCS London Marathon 2025 | Marathon | 3:25:04 | 7452 | |
| TCS London Marathon 2024 | Marathon | 3:34:13 | 11432 | |
| TCS London Marathon 2023 | Marathon | 3:09:21 | 4329 | |
| TCS London Marathon 2022 | Marathon | 3:25:37 | 4888 |