This is pretty pathetic, but the farthest I’ve ever run is one mile. We all had to do it during track practice in middle school, and I thought I was going to puke when I finished. Short-distance sprinting was more my thing! Sometimes I go jogging with my husband, and I’ll do a couple of miles switching between jogging and walking. I’m up to jogging ¾ of the way, but I have to take it very easy because I get shin splints.
As for walking, I don’t really know the farthest. I’ve done some walks for charity that were 9 or 10 miles. Tiring, but not impossible.
Way back in my youth, before my friends and I had driver’s licenses, we used to ride our bikes everywhere. My best friend had an odometer on her bike, and the farthest we went in one day was 20 miles. We never seemed to get tired or feel sore the next day. Ah, to be young again!