Upon turning 50 years old, Yolanda Holder decided to do something different for her birthday. While others in her circle of family and friends opted for elaborate parties, expensive experiences or trips, or even purchasing long-desired goods, Yolanda, on the other hand, set out to walk 50 marathons in 50 weeks. She didn't just meet that goal—she crushed it, completing 66 marathons in 52 weeks. And she never stopped. Now 67, Holder has become one of the most accomplished ultra-endurance athletes in the world. She has set Guinness World Records, all while breaking barriers as a race walker in a runner's world. Yolanda is also the first African American woman to achieve numerous milestones in multi-day racing.