Eugene Yen has 4 recorded races from Northbrook, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-08-23 | 2025 Chicago Triathlon Olympic | Ultra Marathon | 3:16:31 | 1595 |
| 2024-08-24 | 2024 Chicago Triathlon International | Ultra Marathon | 3:21:19 | 1540 |
| 2023-08-27 | 2023 Chicago Triathlon International | Ultra Marathon | 2:40:14 | 1709 |
| 2022-08-28 | 2022 Chicago Triathlon International - Individual | Ultra Marathon | 3:13:02 | 1298 |