Competitor bio:

Sandra is a lifelong runner, a proud mother of two, and an active member of the Sole Sisters Running Club. She has completed more than 30 marathons worldwide, including all six of the Abbott World Marathon Majors. A veteran of the Boston Marathon, she has run it for 14 years, leading Dell Technologies’ Boston Marathon Team and raising awareness and funds for the Michael Lisnow Respite Center, a nonprofit in Hopkinton, MA that provides care for children and adults with disabilities and their families. Through the World Marathon Challenge her goal is to add another $100,000 in support. Beyond racing, Sandra champions wellness and community engagement, organizing health, fitness, and volunteer initiatives through her leadership role at Dell. She also enjoys outdoor pursuits including hiking, cycling, and strength training, which complement her marathon training and fuel her adventurous spirit. For Sandra, running has always been about more than finish lines—it is about building community, creating belonging, and pushing the limits of what’s possible, both on the road and in service to others. The World Marathon Challenge is the ultimate expression of that purpose: seven marathons, seven continents, seven days—all for a cause close to her heart. Support Sandra’s fundraising journey here: https://www.givengain.com/project/sandra-raising-funds-for-michael-lisnow-respite-center-103175