The St Joseph's Rugby Festival is a major schools rugby union competition in the UK.
Each year a few prestigious schools are invited to send their 1st XVs who compete against other teams over 2 days. The format of the competition begins with a group stage and then advances to a knockout stage on day two.
Past winners include such rugby power houses as The John Fisher School, Millfield and Dulwich College. Usually the winners of the tournament go on to do well in the Daily Mail Cup often being crowned champions.
References
St Joseph's Rugby Festival Wikipedia(Text) CC BY-SA