I am running the 50 miler and I was wondering if MP3 players are allowed while running?

For safety and liability reasons, the use of ear-worn devices by runners while running is strictly prohibited. Such devices pose a danger to yourself and others. The roads are narrow with blind curves and hills and open to two-way traffic. Runner support vehicles and other forest traffic will be traveling by runners throughout the day. Full awareness of your surroundings throughout the event is essential. Ultra or relay runners seen wearing such devices will be disqualified and required to leave the course.