Izaac Stone has 4 recorded races from Boulder, CO.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-09-28 | Boulderthon Marathon | Marathon | 4:33:07 | 983 |
| 2024-09-29 | Boulderthon Marathon | Marathon | 4:37:13 | 609 |
| 2024-08-10 | Ore to Shore SOFT ROCK (28 MILE POINT-TO-POINT) | 1:44:48 | 77 | |
| 2023-08-12 | Ore to Shore SOFT ROCK (28 MILE POINT-TO-POINT) | 1:39:06 | 74 |