then defeated defending champion Neil Robertson 10–6 in the final. He reached the quarter-finals of the German Masters, but lost 1–5 against Hawkins. He lost in the last 32 of the Welsh Open 0–4 against Joe Perry, and lost his number one position to Trump. Selby then reached the quarter-finals of the World Open, but lost 3–5 against Robertson. At the China Open, Selby became only the fourth player in history to miss the final black on a 147 attempt, and only the second – after Ken Doherty – to do so in a televised match, in a 5–1 defeat of Mark King. He then reached the final by defeating Ricky Walden 5–2, Williams 5–1 and Murphy 6–2, but lost 6–10 against Robertson. After the event he regained the number one spot from Trump. He finished off the season at the World Championship, where he beat Matthew Selt 10–4 in the first round, before losing 10–13 to Hawkins in the second round. 2013–14 season In the first ranking event of the season, Selby was subjected to a 3–5 defeat to Andrew Pagett in the qualifying rounds of the Wuxi Classic in China. The tournament was the first to use a new format requiring the top 16 players to compete in the qualifying rounds at most ranking events. In minor-ranking tournaments, he was runner-up at the Yixing Open, losing 1–4 to Joe Perry, and at the Rotterdam Open, where he lost 3–4 to Mark Williams. He won the Antwerp Open in November, defeating Ronnie O'Sullivan 4–3 in the final. Having won the UK Championship and Masters in the previous season, Selby qualified to take part in the first edition of the revived Champion of Champions competition, where he lost to Stuart Bingham in the semi-finals 4–6. Defending his title at the UK Championship in December, Selby compiled snooker's 100th officially recognised maximum break in professional competition, in the seventh frame of his semi-final against Ricky Walden. He received £55,000 for the achievement, in addition to the tournament's highest break prize of £4,000. The next day, he lost 7–10 to world number one Neil Robertson in the final, having been ahead 5–1 and 6–3, missing his chance to regain the top position in the world rankings. He began the defence of his title at the Masters by defeating Mark Davis in the first round and John Higgins in the quarter-finals, winning both