Data related to an event is provided to a group of contacts while the event is occurring via an event user interface that enables the group of contacts to coordinate with one another during the event. In this regard, an event coordination service is provides the event data to each contact of the group for review via an event user interface that is persistently displayed on a telecommunication or other computing device associated with the contact for the contact's easy and immediate reference during the event. When the event ultimately concludes, display of the event user interface ceases as the group of contacts likely no longer needs immediate or ready reference to the event.