The 15th annual Donna Marathon Weekend is finally here and is EASILY one of (if not the most) popular races in the city, and one that is highlighted nationally as it’s the only marathon dedicated to Breast Cancer research / care & benefits. A full weekend split between Downtown Jacksonville and Jacksonville Beach - including a 5K, Anniversary 15K Relay, Half Marathon, Marathon, Ultramarathon, Event Challenges and Health & Wellness Expo. It’s wildly popular, so if you see gangs of people in pink this weekend, they’re probably headed to one of the events.