Ottar Grønvold has 4 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| BMW Berlin Marathon 2025 | Marathon | 2:48:39 | 993 | |
| BMW Berlin Marathon 2024 | Marathon | 2:36:03 | 601 | |
| BMW Berlin Marathon 2023 | Marathon | 2:51:06 | 1582 | |
| BMW Berlin Marathon 2022 | Marathon | 2:41:21 | 519 |