Britni Siekaniec has 3 recorded races from Mesa, AZ.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-07-03 | Mt. Marathon Race 1.5 Mi Mountain Climb Women | 1:12:46 | 113 | |
| 2026-02-14 | 2026 Mesa Marathon | Marathon | 3:44:05 | 1045 |
| 2025-02-08 | 2025 Mesa Marathon | Marathon | 3:46:53 | 1152 |