Yes. The 5K has no time restriction. The Half Marathon does. You need to complete the event within 4 houts. That equates to a little faster than a 17 minutes per mile pace. There will be a trail vehicle. If you fall behind the trail vehicle, you may catch a ride. Otherwise, you are totally on your own. Traffic cones will be picked up. Officers and volunteers will not be on the course once the trail vehicle arrives at their areas.