Fry won the toss and opted to bat first on an excellent No.2 wicket at Harry Barker Reserve.
Boys’ High reached 123-9 in 30 overs on the back of Withanage’s unbeaten 45.
Campion’s game-day captain, Rhys Grogan, took 2-13 from six overs and left-armer Manjot Singh, 2-19 from four.
Singh, steady with the ability to swing the ball at medium pace, was once described by his coach Mark Naden as “a silent assassin who prefers his actions — rather than words — do the talking”.
Campion MVP Connor Starck replaced Grogan and took 1-24. His tight line tested all of the Boys’ High batsmen.
Campion were without regular skipper Hamish Swann and Boys’ High were without all-rounder Nathaniel Fearnley, Ben Langford, Caleb Taewa and Malsha Mahabalage.
However, young prospects such as Campion left-arm pace bowler Charlie Whitfield (2-22 in six overs) and Boys’ High off-spinner Ted Gillies (1-7 in 3.2 overs) took the opportunities on offer intelligently.
Dan Baillie, a much-improved wicketkeeper-batsman who retains the ability to bowl a good leg-break, scored 14 from No.1 for Campion; Starck, at second drop, scored 24.
Baillie was the college’s best technically correct batsman on show, and ran hard between wickets; Starck is a fair striker of the ball. Both looked dangerous in the run chase.
For Boys’ High, Withanage rode his luck with the bat and Torrie spun the ball up on to a great length, which was the secret of his success.
Campion player-coach Jonty Fenn said: “Dan and Connor looked good with the bat for us but Kavi’s 45 was the standout performance in that game.
“We always look forward to facing Boys’ High — that was a good game of cricket.”