Celebrate a once-in-a-lifetime milestone! The United States turns 250 years old in 2026 — the Semi-Quincentennial— and the occasion will be marked with an epic year-long virtual challenge. Challenge yourself to complete 250 miles across the year — however you choose! Run, walk, bike, swim, elliptical, hike, row — any miles count and you can track them over days, weeks, or the entire year. It’s all about moving forward and celebrating the spirit of freedom and resilience that built this nation.