Generating graphical representations of event participation flow

A system comprising a computer-readable storage medium storing at least one program and a method for generating graphical representations of event participation flows are presented. In example embodiments, the method includes receiving a subject event identifier entered as user input via a user interface. The method further includes accessing event data including a plurality of event data records that include an event record corresponding to the subject event identifier. The event record includes a set of participant identifiers corresponding to participants of a subject event identified by the subject event identifier. The method further includes determining an event participation flow for the participants of the subject event using the event data, and causing presentation of a graphical representation of the event participation flow in the user interface.