175 miles - 25 a day, for seven days. I was challenged to do this by a friend and training partner who was an elite marathoner and who had done this for two consecutive weeks, so I said what the heck. For the first 5 days I ran doubles, with 10-12 in the morning before going to work, then 13-15 in the afternoon after work. The last day, Sunday, was my toughest, because I had done one long run of 25 on Saturday, then ran 18 Sunday morning and had to come back with a 7 miler that night. I was able to do it and ran the last mile of that 7 miler in 5:24 because I just wanted it to end. This was back when I was much younger, and I suppose I should not wonder why I now run so slowly on my afternoon 30-45 minute runs!