An important factor in the successful use of the ORC system is how race managers will use ORC ratings to score races. With a VPP system, there are many options for scoring and race managers must find a balance of use between simple systems that may be more user-friendly and those that are more complex but often more accurate. The correct choices meet the expectations of the owners and sailors, so they are satisfied that the racing was fair…this is especially important when there are many boats of different types that have different performance characteristics. The ORC Race Management Guidebook describes the principles and techniques that help give race managers how to find the proper balance for their fleets to create fair racing.