O'Sullivan is tied for the record of most world championships with Stephen Hendry, has the most major titles (23), the most ranking titles (41), the most century breaks (more than 1,300) and the most 147s (17), including the quickest in a remarkable 5 minutes, 8 seconds at the world championship in 1997.
Already this season, O'Sullivan, who only plays sporadically on the circuit in the latter years of his career, became the first player to make two 147s in one match - in the semifinals of the Saudi Arabia Masters last year.
"I've been the first to do many things," he said of his latest feat, "so I thought I'd get that one as well.
"For me, it's the excitement and the buzz. If the excitement and the buzz is there, I can do great things. If not, I don't get excited by it."
Australian snooker player Neil Robertson, a former world champion, praised O'Sullivan.