Have been a couch potato for 20 years after being a fairly competitive high-school runner. Some injuries prevented me from running until I found barefoot running about 8 weeks ago...had a fiasco with blisters that shut me down for a week or so, and have been training fairly well the last 6 weeks before this one...I was able to do a 13.1 mile run on my tenth day after the blisters healed, was on a treadmill in sandals, averaged a 13:31 mm pace. Two weeks later I did another Half Marathon distance run, outside on a flat course, with sandals, averaged a 12:40 mm pace. I am 6'2" and weighed 261 pounds when I started, I am down to 246 pounds now...my goal weight is 175 pounds. Its been mostly loosey goosey whatever feels fun to try that day kinda running so far, but now I will get a bit more organized about it...doing the second 13.1 mile run, and doing a 5.1 mile mountain trail run STG convinced me that I can carefully up the ante now. Here is an outline of my 'plan'. (Subject to constant revision Monday: Recovery 2-3 miles...nice and easy Tuesday: Speed Workout...8 x 400 meter repeats with 1 min rest. Wednesday: Track Threshold Run Thursday: 5.1 mile trail run Friday: Track run to work on form...3-5 miles easy + 5-10 x 120 meter strides Saturday: 5.1 mile trail run Sunday: 10.2 mile mountain trail run, 3200 ft elevation and 3200 ft descent After a month to 6 weeks the tuesday workout will change to 8 x 800 meter repeats, and the Sunday trail run will bump up to 15.3 miles with 4800 ft of elevation and 4800 ft of descent.