"Buster" Martin @ 101 years old
The men's world record is 2:03:38 and the women's world record is 2:15:25 minutes. In the 2007 Boston Marathon, the person that finished in 5,029th place ran the distance in 3:28:08. Many people run a marathon as a challenge and not as a competition with the other racers. Katie Holmes did it in 5 and a half hours. Some folks, soon to include Hamish Blake, take 6 or more hours or more to complete the marathon. Look under the Related Questions link to see how old the oldest person was to finish a marathon.
According to the Boston Marathon website: Wood, Keith H. an 83 man from Sultan, WA finished in 6:23:16 and was the oldest participant in the 2012 edition. Keith placed 21151 overall, and was the 12378 male finisher and 2nd male finisher in the 80+ age group.
83 years old
well I didthe 1988 milenium marathon when I was 15
john kelly Clarence Demar
The First perso to ever run a marathon was actually a women named "Kathrine Switzer". It was in the years of 1967 in Boston