He started to play for Surrey as an amateur in 1895. He played his last match for Surrey in 1920, but continued to play occasional first-class cricket until 1931. In all, he played in 277 first-class matches, scoring 7,638 runs at a batting average of 23.72, including 4 centuries, and took 46 wickets at an average of 29.95, including 5 wickets on three occasions. His highest first-class score, 155, was reached playing for Sussex against Oxford in 1899. As captain of Surrey from 1908 to 1910, he led the team to 3rd, 5th and 2nd in the County Championship. He was treasurer of Surrey from 1926 to 1928, and the club's president from 1929 to 1939. He was an outstanding fielder, and took 103 catches. He toured the West Indies with Lord Hawke in 1896–97, and North America with Pelham Warner in 1897. He joined the Marylebone Cricket Club tours to South Africa in 1905–6, but did not play in the Tests. He returned to South Africa in 1909–10, and captained England in all three of the Test matches he played, winning one and losing two against South Africa in 1909/10, with Frederick Fane captaining the other two Test matches of the series. He played for the Gentlemen against the Players on several occasions. For fifty years he played a major role in organising the Scarborough Festival which takes place at the end of each English cricket season. Touring Test teams would play annually against H. D. G. Leveson Gower's XI. He became a Freeman of the Borough of Scarborough in 1950. Leveson Gower became an England Test selector in 1909, and was chairman of selectors in 1924 and from 1927 to 1930. In 1925 he published a book called Cricket Personalities, which included profiles on well-known cricketers such as Jack Hobbs, Percy Fender and Frank Woolley. He was knighted for his services to cricket in 1953 and in the same year he published a book of reminiscences entitled Off and on the Field.
Other activities
Outside cricket, Leveson Gower was a stockbroker. He married Enid Mary Hammond-Chambers in 1908. They had no children. He served as a major in the Royal Army Service Corps in the First World War, and was mentioned in dispatches. He died in Kensington, survived by his wife.
Nickname
Leveson Gower was nicknamed "Shrimp" at school, probably due to his shortness and slight physique, but few cricket sources refer to him by anything other than his initials. During a tour of America in 1897 organised by Plum Warner that Leveson Gower took part in, the Philadelphian journalist Ralph D. Paine published the following piece of humorous verse concerning the pronunciation of his surname: