Ronnie O'Sullivan Ronald Antonio O'Sullivan, (born 5 December 1975) is an English professional snooker player. He is widely regarded as one of the greatest players in the history of the sport, having won five World Championships, seven Masters titles, and seven UK Championships; setting a record of 19 Triple Crown titles. His career total of 34 ranking titles is second only to Stephen Hendry's 36, while his career earnings of over £10 million puts him in first place on snooker's all-time prize-money list. He holds the records for the most competitive century breaks, the most official maximum breaks in professional competition (15), and the fastest competitive maximum break, compiled in 5 minutes and 20 seconds at the 1997 World Championship.He has also played pool, including competing in early editions of the Mosconi Cup.