Mary Beth St. Clair has 2 recorded races from Boise, Idaho, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2023-05-13 | FAMOUS IDAHO POTATO MARATHON, HALF MARATHON, 10K & 5K Marathon | Marathon | 3:58:33 | 53 |
| 2022-05-14 | YMCA Famous Idaho Potato Marathon & Fun Runs Full Marathon | Marathon | 4:30:04 | 92 |