Abbott Health & Fitness Expo is the official multi-day health and fitness trade show for the Bank of America Chicago Marathon, held at McCormick Place in Chicago. The expo brings together hundreds of exhibitors showcasing running gear, nutrition, medical and wellness services, and it typically hosts official race packet pickup, event merchandise, seminars and interactive demonstrations. It serves as a central hub for marathon participants and fitness enthusiasts to prepare, learn and engage with brands and experts ahead of the race.