SAN DIEGO, CA - MAY 31: 92 year old Harriette Thompson and son Brenny Thompson, finish the Suja Rock 'n' Roll San Diego Marathon on May 31, 2015 in San Diego, California. (Photo by Jerod Harris/Getty Images for Rock 'n' Roll Marathon Series)
SAN DIEGO, CA - MAY 31: 92 year old Harriette Thompson and son Brenny Thompson, finish the Suja Rock 'n' Roll San Diego Marathon on May 31, 2015 in San Diego, California. (Photo by Jerod Harris/Getty Images for Rock 'n' Roll Marathon Series)