The Wayback Machine - https://web.archive.org/web/20180621100656/http://www.guinnessworldrecords.com/world-records/fastest-147-break-in-snooker/
Fastest 147 break in snooker
Who
Ronnie O' Sullivan
What
5/20 minute(s):second(s)
Where
UK (Sheffield)
When
Highest breaks
The fastest 147 in a professional tournament is 5min 20sec by Ronnie O'Sullivan during the 1997 World Championships at Sheffield on 21 April.