🔥 COLFAX MARATHON
2026
May 17 · 26.2 mi · Denver, CO · Goal: Sub 4:00 (9:09/mi)
Urban River (0–6.5)
Sloan's Lake (6.5–10.3)
Eclectic Mile High (10.3–16.2)
Screaming Downhill (16.2–20.2)
Downtown Finale (20.2–26.2)
26.2
MILES · 9:09/mi