Ronnie O’Sullivan (UK) has achieved 15 competitive 147 breaks during his career, between 21 April 1997 and 17 October 2018. “The Rocket”’s first 147 was pocketed in the first round of the 1997 World Championship at the Crucible Theatre in Sheffield, UK, against Mick Price. His most recent maximum came at the English Open in Crawley, UK, in the final frame of his second-round match against Allan Taylor.It was O’Sullivan’s second 147 of 2018, after the 42-year-old’s total clearance against Elliot Slessor in the second round of the China Open on 3 April. O’Sullivan had to share the English Open's £17,000 prize for making a 147 after Thailand’s Thepchaiya Un-Nooh scored a maximum during his first-round win over Iran’s Soheil Vahedi the previous day, 16 October.