The overview on methods for economic impact analysis contains a theoretical background as well as hints for practical application. Starting with a holistic detection of sports events, the economically relevant areas get identified. This overview is based on the various different methods, which will be explained based on existing research on several events. Despite Cost-Benefit-analysis (CBA), Input Output models as well as models on computable general equilibrium will be introduced. Moreover micro data based analysis and qualitative methods will be examined. Information on common concepts like multipliers or models of sustainable change in economic activity are provided in a general section. The introduced methods contain ex-ante as well as ex-post options to measure the impact on the economic sphere. Along with forecasting tools, other methods to examine models after the events are discussed. The issues concerning intangible effects are worked on in a specific section. The image effects are shown as well as methods to determine commercial and entertainment values. The inherent risk associated with mega events is leading to a range of valuation deviation. In order to keep these deviations at a minimum, potential already made misapplications are shown. Moreover singular and multiple sensitivity analysis are introduced. No new approaches or methods are developed here, the aim is rather to support the ongoing improvement in method quality.