Run Against Breast Cancer 5k/10k/13.1 Denver/aurora

Join us for the Run Against Breast Cancer 5K/10K/13.1 event in Centennial, Arapahoe, Colorado on December 13th, 2025. Lace up for a meaningful cause, as participants of all ages and abilities come together to raise awareness and funds for those affected by breast cancer. With distances catering to every level - 5K, 10K, and half marathon - this event offers a day of community spirit, inspiration, and hope. Track your progress, receive a swag bag with a T-shirt and finisher's medal, and connect with local running clubs. Limited spots available, so sign up early for a chance to be part of this impactful event shaping a future free from breast cancer.