Community Project – Challenger Day is run in the UK before the end of April 2017, being run defined as being announced and having at least five people attend.

Created by jbeshir on 2017-03-12; known on 2017-05-01; judged wrong by jbeshir on 2017-05-04.

• jbeshir estimated 65% on 2017-03-12
• jbeshir   judged this prediction wrong on 2017-05-04.