The race will be held rain or shine. Runners are advised to check www.weather.com for forecasts and be prepared. Extra layers of clothing worn at the start may be discarded at the bag drops at each starting line. The Glass City Marathon reserves the right to cancel, delay or change the race to a non-scored run in case of extreme weather or other conditions affecting the safety of the participants. A flag system will be used along the course (at aid stations) to alert you to weather conditions.