Eileen Waters Connolly was a trailblazer in American long-distance running, part of the first generation of women to compete in the sport. In 1972, she made history by setting a world record in a 50-mile race on a track in Santa Monica, finishing in 7:05:31. Even more impressive, she ran negative splits—completing the second half 23 minutes faster than the first. A year later, she returned and broke her own record, cutting 10 minutes off her time. She died in 2016 at 71 from adenoid cystic carcinoma (ACC), a rare form of cancer. As she aged, she never lost her sense of humor or self-effacing nature. She was quoted as saying, "When you get old, you just show up and most likely you'll win your age group."