but came through it 3–2. He then saw off Stephen Bunting 4–0 to reach his fourth Quarter Final. He managed a 5–1 victory over Robert Wagner in the Quarter finals and went on to meet Dave Chisnall in the semi-final who had beaten Fitton in the first round, former Masters champion Tony West in the second round, and defending champion Hankey in the quarter-final. O'Shea, despite taking the first two sets, was beaten 6–3 by Chisnall and saw his World Championship dream end for another year. Martin Adams went on to defeat Chisnall in the final. O'Shea won all three group games in the 2010 Grand Slam of Darts, defeating Vincent van der Voort 5–1, James Wade 5–1 and Justin Pipe 5–4. He then lost 10–7 to Terry Jenkins in the second round. In contrast in 2010 where he was world number one, O'Shea came into the 2011 BDO World Champsionship as the number eight seed and suffered a shock first round loss to Ross Smith. O'Shea was seeded at the 2012 BDO World Championship, O'Shea put his successful run in the tournament down to his work with professional sports mind coach and hypnotherapist Stephen McKibben from Belfast. He beat Steve West in the first round, hitting a 140 checkout and 142 checkout in consecutive legs at the end of the match, before defeating Ross Montgomery in the second round. He then beat defending champion Martin Adams 5–2 in the quarter-finals, hitting a 170 checkout in the fourth set and thanked mind coach Stephen McKibben for enabling him to at last beat Martin Adams in a major tournament. O'Shea followed this up with a 6–5 victory over Dutch débutant Wesley Harms to reach his second World Championship final, where he was defeated by another Dutch débutant, Christian Kist, 7–5. In October 2012, O'Shea reached his sixth major final at the 2012 Winmau World Masters, and was beaten by Stephen Bunting. Tony O'Shea reached his third World Championship final in 2013 after a high quality run. He struggled badly in the final, losing to Scott Waites 7–1 with an average of 81.90. O'Shea became the first man to lose his first three BDO World Championship finals, and only the second player to lose his first three world finals in either the BDO or PDC after Peter Manley. In 2018, he was not at the World Championships for the first time in