Mark Eikenberry has 2 recorded races from Chicago, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2024-08-24 | 2024 Chicago Triathlon International | Ultra Marathon | 3:19:49 | 1503 |
| 2022-08-28 | 2022 Chicago Triathlon International - Individual | Ultra Marathon | 3:39:13 | 1963 |