Colin Theis has 4 recorded races from Chicago, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-08-23 | 2025 Chicago Triathlon Olympic | Ultra Marathon | 2:54:22 | 776 |
| 2024-08-24 | 2024 Chicago Triathlon International | Ultra Marathon | 2:57:09 | 763 |
| 2023-08-27 | 2023 Chicago Triathlon International | Ultra Marathon | 2:15:37 | 519 |
| 2022-08-28 | 2022 Chicago Triathlon Sprint - Individual | 1:38:55 | 183 |