RunSignUp is an online platform designed to help race directors manage events efficiently. It offers tools for registration, fundraising, and timing, making it easier to organize races of all sizes, from local 5Ks to large marathons. Participants can use RunSignUp to register for events, track their progress, and even create fundraising pages for charities. The platform also provides features like race day check-in and results tracking, enhancing the overall experience for both organizers and runners.