F^3 Lake Half Marathon & 5k

The USATF-certified course is mostly flat & fast along Chicago’s lakefront. Each mile is marked with an F^3 feather flag. There are three aid spots on the course, each of which is passed twice, offering 6 chances for water, Gatorade, or bathrooms. Pacers will once again be provided by Fleet Feet & Chicago Endurance Sports. Pace groups typically provided are: 1:30, 1:45, 2:00, 2:15, 2:30, 2:45, 3:00, 3:30 (sweep). Out of respect for our volunteers, the course closes at 1:35 pm, at a pace of 14:06 min/mile.

Wave Start: The Half-Marathon start is done in waves to limit overcrowding on the course. Waves are self-seeded and start approximately every 90 seconds. Waves start fastest to slowest. Those needing more time or worried about keeping ahead of the rolling course closure time (14:06 mi pace) should start with WAVE 1 and keep to the left for the first mile.