Fleet qualified to play in the 2010 BDO World Championships at the Lakeside Country Club where he was drawn against the 2007 World Champion Martin Adams. In the first leg of the match, Fleet appeared to be very nervous, dropping his darts twice and struggling to maintain grip while also losing his balance a few times. In 27 darts, Fleet scored 26, 41, 60, 60, 5, 41 (with his first dart hitting double 1), 22, 80 and 11, and it is largely considered to be "the worst leg in darts history". Adams also struggled to get going in the leg, missing 4 darts at a double before finally finishing on double 3. It has also been suggested that Fleet was drunk, having spent much time in the bar prior to the match, possibly trying to settle his pre-match nerves. Fleet achieved a 3-dart average of 65.34 (one of the lowest recorded averages in the history of a major competition), and lost 3–0 in sets without winning a leg. Adams later spoke of his sympathy for Fleet and recalled his nerves the first time he played at the Lakeside saying that "no one knows what its like up there until you get up there."