Yes. The time limit for the marathon and marathon relay is 6 hours (1pm). The time limit for the half marathon is 3:30 (10:30am). The time limit for the 10k and 5k is 2 hours. The time limit is a safety issue and applies to both runners and walkers alike. The roads on the course can only be closed for the allotted time frame. Runners must maintain a 14 minute/mile pace at all points on the course, the only exception to this pace is the 5k. If you are unable to do so, you will be required to move to the sidewalk and will no longer be considered a race participant; you must obey pedestrian laws.