Cotton remained at Langley Park until the end of 1932 when he moved to the Waterloo Golf Club near Brussels, Belgium. While there, Cotton improved his game and by the time he left he was one of Britain's leading golfers. In 1926, Cotton again failed to qualifying for the Open Championship but later in the year qualified for the knock-out stages of the Yorkshire Evening News Tournament and the News of the World Match Play and ended the season by winning the Kent Professional Championship.