The Fort Smith Marathon offers a full marathon, half-marathon, and marathon relay starting and finishing at the River Front Pavilion in Fort Smith, AR. The courses feature scenic and challenging routes through historic areas and varying terrains. Participants must meet age requirements and adhere to an 8-hour course limit. Race adjustments, including switching races or transferring registrations, have specific conditions, deadlines, and policies. Deferred entries are permitted under certain conditions, with non-transferable discount codes issued for future races. The event may be canceled or adjusted due to unsafe conditions, with no refunds provided for such changes.