Abstract: A system and related method to forecast based on events defined by event segments. The system includes a database or set of databases populated with selectable event segments characterized by known information and predictive information deemed by the user to be relevant to a particular organization for which future resource allocation predictions are desired. Rather than evaluate past data summaries alone to predict future resource allocation requirements, the system and related method input raw data that may be parsed and analyzed in any selectable combination to produce one or more forecasts to produce resource allocation information. One use of the system and related method is to calculate staffing requirements for a contact center at a selectable level of granularity.