 Complete the following phrase:  Atkins finally progressed past the second-round stage of the World Championship when, in 2012, he defeated 7th seed John Walton and 10th seed Willy van de Wiel en route to a quarter-final match against Ted Hankey where he lost 51. In 2012, Atkins won the biggest title of his career so far by winning the BDO British Open, beating Robbie Green in the final. However, his season ended in disappointment when he lost in the first round of the 