Join the Great American Summer GRIT celebration in Baltimore and run anywhere from 25 to 250 miles while commemorating the 250th Birthday of the United States—collect distance badges as you progress across the map and push through challenging terrain and summer heat. This 11-time event promises a rewarding experience where you'll discover your resilience, and most importantly, you'll become part of a supportive community of runners who show up for each other through every difficult mile.