Several well-known relay races are held annually to support cancer causes. Some of the most popular include: - Relay For Life: Organized by the American Cancer Society, this event involves teams of people who take turns walking around a track or path. - Susan G. Komen Race for the Cure: Focused on breast cancer, this series of events includes 5K runs and fitness walks. - Light The Night Walk: Hosted by the Leukemia & Lymphoma Society, this event features evening walks with participants carrying illuminated lanterns.