All of the teams in the tournament are county champions .
Bourne will be playing the hosts London Oratory School , London , Chellaston School representing Derbyshire and last year 's Under 15 Daily Mail Cup finalists Truro School , representing Cornwall , in the pool stages .
All of the teams in the tournament are county champions and Bourne will be playing the hosts London Oratory School , London , Chellaston School representing Derbyshire and last year 's Under 15 Daily Mail Cup finalists Truro School , representing Cornwall , in the pool stages .