Amazing Spider-Man (1963 1st Series) #216 VF
Published May 1981 by Marvel.
"Marathon" Script by Denny O'Neil. Art by John Romita Jr. (breakdowns) and Jim Mooney (finishes). Cover by John Romita Jr. and Al Milgrom. It's time for the annual New York City marathon! And this year's race has a special guardian angel...the Amazing Spider-Man! After the web-slinger hears about a possible assassination attempt during the event, he decides to follow the race for the full 26 miles! But there are over 15,000 runners participating! How will Spidey know who is the intended target? Enter Madame Web! With help from his clairvoyant friend, the wall-crawler zeroes in on the sniper; while the runners zero in on the finish line! Cameo appearances by Aunt May, Nathan Lubensky, and J. Jonah Jameson. (Notes: Madame Web appears next in Amazing Spider-Man 229. This issue includes a full-page ad for the first issue of the Dazzler series.) 32 pages. Cover price $0.50.