He was the leading English player in a game played by letters sent between London and Edinburgh in 1824, won by the Scots. He wrote a book on the match with analysis of the games. In 1834–36 he was on the Committee of the Westminster Chess Club. They lost games played by letter with the Paris Chess Club. The other players were his students McDonnell and Walker, while the French team included Boncourt, Alexandre, St. Amant and Chamouillet. When De La Bourdonnais visited England in 1825, Lewis played about 70 games with the French master.