Mark Shanahan has 3 recorded races from Naperville, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2022-05-22 | Life Time Chicago Spring Half & 10K | 10K | 1:08:30 | 676 |
| 2022-03-05 | Truist Corporate Cup 5K & Half Marathon 5K Run | 30:02 | 407 | |
| TCS London Marathon 2026 | Marathon | 4:31:56 | 31046 |