He claimed the Billiards Championship in 1825 and held it uncontested until 1849.

[3][4] In about 1815, John Carr, better known as Jack Carr, took a job as a billiard marker, a role that involved keeping the score of billiards matches.

In this role, he learned how to play billiards with the use of side, which was at that time almost unknown.

[2] In 1825 Kentfield challenged Carr, but Carr was too ill to play, and Kentfield assumed the title of Champion, for which he was unchallenged for 24 years.

[5][2][7] Kentfield ran a billiards club in Brighton, which was offered for sale at auction in 1864 following his bankruptcy.