Marian CHAO has 3 recorded races from CHICAGO, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-08-23 | 2025 Chicago Triathlon Olympic | Ultra Marathon | 4:00:30 | 2384 |
| 2024-08-24 | 2024 Chicago Triathlon International | Ultra Marathon | 4:28:56 | 2385 |
| 2023-08-27 | 2023 Chicago Triathlon Sprint | 2:00:47 | 1881 |