Systems and methods of evaluating single points of failure in a computer network are provided. The system includes a processor configured to receive at least two polylines approximating respective network spans. For each point in a set of points representing geographic locations, the processor can determine a level of risk that an event at the point will affect at least the two polylines. The processor can determine an overall risk of failure by combining the level of risk for each point in the set of points. The processor can output a report indicating at least one point determined to be a potential SPoF based on the level of risk for the at least one point.