No one today would recommend that a six-year-old child run a marathon. In fact, most major marathon organizers set a minimum age limit of 18, primarily due to safety, liability, and the physiological strain that extreme distance running puts on growing bones and joints. Back in 1969, however, Mary Etta Boitano Blanchard ran her first marathon at age six–she attempted a marathon at age five but dropped out at Mile 20–finishing in 4:27:32. At age ten, she ran a 3:01:15. By the time she was 12, Mary Etta had completed 50 marathons. At age 5, she was the first female finisher at the iconic Dipsea Race, a grueling 7.4-mile run along the rutted, rocky trails of Muir Woods in Mill Valley, California. She has since run Dipsea over 35 times, and today she participates alongside her husband and sons. Her legacy extends beyond her race times. She and her mother worked tirelessly to persuade the AAU to allow women to compete in distances longer than 1500 meters. They were determined to end the era when female runners had to sneak into races or register using only their initials to disguise their gender. At 63, Mary Etta still logs 40 to 50 miles a week, gardens, loves to cook, and continues her tradition with the Dipsea.