Samuelson finished the 2019 Boston Marathon in 3:04:00, smashing the women's 60–64 Boston age-group record by eight minutes.
She will run the Chicago Marathon this year to commemorate her American record in 1985.
Colleen De Reuck is the current record holder.
Nothing like last-minute advice from an all-time great.
From Kastor to Flanagan to Joan Benoit Samuelson, these marathoners are the best the U.S. has seen.
Running wasn't always a sport for females, but these women were the catalyst for change.
Check out these photos from a special anniversary event in Los Angeles.
The legendary runner answered questions before a Nike event in her honor.
The 28-year-old Briton kicked in the last mile to earn the victory.