Wow...she walked a marathon in a lil over 5 hours??? OUTRAGEOUS!!!
That said...I know a few older woman at my local park (in their late 50's early 60's) that can WALK faster than I could RUN/JOG at that time. I just started running at the time, so we'll see how I hold up against them in the Spring...I bet they'll still give me a WALK for my money! Haha..