Weekly training miles varies depending on season, scheduled race and race distance and my mood.
Here is my base schedule that I start with. The distance is based on preparing for a Half Marathon (21 km, 31.1 miles):
Monday : Cross training/core workout
Tuesday: Hill day. Five mile hill run covering more than 1000 ft of elevation change
Wednesday:Cross training/core workout
Thursday: Maintenance Run : Six mile pavement run around the neighborhood.
Friday: Rest day
Saturday: Pre long slow run : eight miles
Sunday: Long slow run : eight to twenty two miles
Total Milage : Average ~25 miles per week, ramps up to 35 miles for marathon and 55 for 50K.
Cross Training = not running. Walking dog, cyling (Trek 5200)
Core Workout = side and full planks, push, pull and sit-ups. Quad strength training using small 3 pound weight.
Training Weight = 1523pounds
Taper Weight = 156+ pounds