Mark Ortlieb has 4 recorded races from Chicago, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-08-23 | 2025 Chicago Triathlon Sprint | 1:56:31 | 1072 | |
| 2024-08-24 | 2024 Chicago Triathlon Sprint | 2:01:03 | 872 | |
| 2023-08-27 | 2023 Chicago Triathlon Sprint | 1:38:01 | 931 | |
| 2022-08-28 | 2022 Chicago Triathlon Sprint - Individual | 1:52:03 | 587 |