[2] Claude Rock was educated at Launceston Grammar School and at Clare College, Cambridge.

[3] A right-handed batsman and a right-arm medium-pace bowler who used the round-arm bowling style, Rock played very successfully in Tasmanian cricket's most important fixture, the North v South match, before he was 16 years old.

In 1885, his university cricket captain was Lord Hawke and in August he played for an amateur team put together by Hawke which took on a full Yorkshire team and beat them, largely due to second innings bowling figures of eight wickets for 36 runs from Rock, the best of his first-class career.

[10] Rock had graduated from Cambridge University with a Bachelor of Arts degree in 1885, and was 22nd Wrangler, which indicates high academic achievement.

[3] He returned to Australia and, despite a back injury that curtailed his bowling, he played in Tasmania's occasional first-class cricket matches against Victoria between 1889 and 1893; in the first of these, the New Year match of 1889, he opened the batting and scored 102 of a second innings total of 193, and this was his highest first-class score.