Ratajski played in the BDO World Trophy for the first time in 2016 and lost 6–4 to Scott Waites. He teamed up with Mariusz Paul at the 2016 PDC World Cup of Darts and they were defeated 5–1 by Belgium in the opening round. He qualified for the International Darts Open and was eliminated 6–1 by Chris Dobey in the first round.