They were sharper behind the scrum and might have piled up a bigger score had it not been for a bold Ivybridge comeback in the second half.
They trailed 16-3 at the break with a man in the sin-bin but Tom Mugford's interception try and a conversion and three penalties from Rob Avery-Wright got them back into the game. Sam Hill was held up on the line five minutes from time.
England assistant coach Graham Rowntree and national Under 18 coaches John Fletcher and Peter Walton were among the spectators at the climax of the inaugural Advanced Apprenticeship in Sporting Excellence (AASE) Under 18 competition, which involves the 12 leading rugby-playing colleges in the country.
The programme is designed to offer young people the chance to pursue rugby excellence and education at the same time with each college linked one of the 14 England Rugby Academies. Hartpury are tied to Gloucester Rugby and Ivybridge to Exeter Chiefs.
St Paul's from Sunbury beat Filton 38-7 in the Plate final and Saracens' centre Sam Stanley scored 30 points - three tries, six conversions and a penalty - as Oaklands beat Truro 65-0 to win the Bowl.
Content courtesy of RFU.