Chisnall won one of five qualification spots for the 2009 BDO World Championship, beating Stewart Rattray to qualify. The next day he took part in the 2008 Winmau World Masters but lost in the first round to fellow Lakeside qualifier Daryl Gurney of Northern Ireland. In the World Championship, Chisnall gave Martin Adams a tough match, losing 3–5 in the deciding set to the number 3 seed.