Alex Castro has 10 recorded races from Chicago, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-08-23 | 2025 Chicago Triathlon Olympic | Ultra Marathon | 3:10:14 | 1359 |
| 2025-08-23 | 2025 Chicago Triathlon Sprint | 2:06:41 | 1569 | |
| 2025-08-23 | 2025 Chicago Triathlon Triple Challenge Results | Ultra Marathon | 6:05:19 | 78 |
| 2025-08-23 | 2025 Chicago Triathlon SuperSprint | 48:24 | 114 | |
| 2023-08-27 | 2023 Chicago Triathlon International | Ultra Marathon | 2:47:30 | 1968 |
| 2023-08-27 | 2023 Chicago Triathlon Sprint | 1:50:00 | 2029 | |
| 2023-08-26 | 2023 Life Time Tri Chicago SuperSprint/Kids Tri SuperSprint - Individual | 45:33 | 186 | |
| 2022-08-28 | 2022 Chicago Triathlon International - Individual | Ultra Marathon | 3:18:33 | 1483 |
| 2022-08-28 | 2022 Chicago Triathlon Sprint - Individual | 2:25:15 | 1647 | |
| 2022-08-27 | 2022 Life Time Tri Chicago SuperSprint/Kids Tri SuperSprint - Individual | 48:37 | 141 |