Whitman, who had taken up cricket in university, played club cricket for BarryCricket Club. He was a right-handed batsman and a right-arm medium-pace bowler who played two first-class games for Glamorgan during the 1932 season, appearing in the lower order in both games.
Following the end of his cricketing career, Whitman became a school teacher. By 1951 he was teaching at Bournemouth School. In 1958 he became the first headmaster of Aldridge Grammar School where he remained until his retirement in 1974.
Marriage
Whitman married Madge Trowell in East Glamorgan in 1936.