Mark Chellis has 3 recorded races from Saint Louis, Missouri, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-10-05 | MO' Cowbell Marathon/Half-Marathon/10K/5K Half Marathon | Half Marathon | 2:54:54 | 2111 |
| 2023-10-01 | MO' Cowbell Marathon/Half-Marathon/10K/5K Half Marathon | Half Marathon | 2:32:25 | 1613 |
| 2022-10-02 | MO' Cowbell Marathon/Half-Marathon/10K/5K Half Marathon | Half Marathon | 2:28:47 | 1239 |