Abstract: Systems and methods for assessing and reporting fatigue risk in real time and for providing fatigue countermeasures are disclosed. The system includes electronic and software systems that predict and preempt fatigue risk by calculating, based on historical work schedule patterns, risk ranges or levels, and provides in real time a graphical risk output and countermeasures to reduce risk. High risk personnel can be automatically reported to management for further evaluation. A lifestyle plan based on historical work schedules and planned work scheduled are generated and provided to personnel. Risk assessment can be performed at any time, including when beginning or ending work, or on-demand.