Aged 18, Kimpton made his first-class debut for Oxford against his future county, Worcestershire, at The Parks in early May 1935, a game which the university won by an innings.
Kimpton showed his versatility by scoring 38, bowling five (admittedly wicketless) overs and claiming a catch and a stumping (even though Norman Knight was Oxford's named keeper).
[9] Kimpton's hundred against Lancashire had put him on course for that season's Walter Lawrence Trophy, but Leslie Ames pipped him to the title by two minutes in the final match of the year.
[13] Kimpton played ten games in 1938, including two on the joint Oxford and Cambridge Universities tour of Jamaica in August, but found little success, making only two half-centuries and averaging under 24.
There was a one-off game for Worcestershire in 1949, in which he showed his continuing ability by taking 93* off Nottinghamshire;[14] and in 1955-56 he accepted an invitation from E. W. Swanton to join his tour to the West Indies, playing his final two matches at the age of 39.