Mattie Grim has 4 recorded races from Chicago, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-08-23 | 2025 Chicago Triathlon Sprint | 1:30:53 | 101 | |
| 2024-08-24 | 2024 Chicago Triathlon Sprint | 1:40:36 | 204 | |
| 2023-08-27 | 2023 Chicago Triathlon International | Ultra Marathon | 2:14:53 | 481 |
| 2022-08-28 | 2022 Chicago Triathlon International - Individual | Ultra Marathon | 2:50:06 | 515 |