First maximums The first known maximum break in practice was made by Murt O'Donoghue at
Griffith,
Australian Capital Territory, Australia, on 26 September 1934.
Joe Davis compiled the first official 147 against
Willie Smith in an exhibition match on 22 January 1955 at Leicester Square Hall, London.
Rex Williams made the first maximum break in a competitive match against
Manuel Francisco, Professionals v. Amateurs, on 23 December 1965 in
Cape Town.
John Spencer made the first maximum compiled in professional competition on 13 January 1979 at the Holsten Lager Tournament against
Cliff Thorburn, but it was not officially
ratified due to oversized pockets. The first official maximum break in professional competition was made by
Steve Davis in the
1982 Lada Classic against Spencer. In March 2019,
Mink Nutcharut made a 147 during a practice match at the Hi-End Snooker Club in Thailand. She is believed to be the only woman to have made a maximum break, either in practice or in competition.
World Snooker Championship maximums There have been 15 maximums made at the main stage of the World Championship—staged at the
Crucible Theatre in
Sheffield, England—by 11 different players. Thorburn made the first, The first time that two maximum breaks were made in the same
ranking tournament was at the
1999 British Open, where
Jason Prince made one during qualifying and Graeme Dott at the main event. Two maximum breaks (by Neil Robertson and Noppon Saengkham) were also televised at the
2019 Welsh Open. Three official maximums at the same professional tournament have been achieved six times. The first was at the
2012 UK Championship, when
Andy Hicks and
Jack Lisowski both compiled one each in qualifying and John Higgins compiled one in the televised stages. The second time was at the
2017 German Masters, where Ali Carter and
Ross Muir both compiled one each during qualifying and
Tom Ford during the televised stages. In the third round of the qualifying stage for the
2025 World Championship, Jackson Page made two maximums in his 102 win over
Allan Taylor, with the first in the eighth frame on 13 April 2025 and the second in the twelfth frame the following day. On 15 August 2025, in his 63 win over
Chris Wakelin in the semi-finals of the 2025 Saudi Arabia Snooker Masters, Ronnie O'Sullivan made maximums in the first and seventh frames of the match, becoming the only player to make two maximums in a one-session match or on the same day. and later in the same year
Mark King and
Joe Jogia are said to have replicated the feat at the Grove Open. The only known instance of more than two maximum breaks being compiled at a single event on the same day is during the Buckley's Bitter Challenge; three 147s were compiled on 8 February 1998, by
Matthew Stevens,
Ryan Day and
Tony Chappel, but were not officially ratified. The only player known to have made more than two maximum breaks on a single occasion is
Adrian Gunnell, who compiled three maximums in four frames at a club in Telford in 2003 while practising against Ian Duffy. John Higgins, Ronnie O'Sullivan and Thepchaiya Un-Nooh are the only players to record maximum breaks in consecutive ranking events. Higgins made maximums at the
LG Cup and the
British Open in 2003, However an investigation undertaken by
Deadspin in 2017 revealed that the time recorded by Guinness was incorrect because the timer was started too early on the BBC footage. Breaks are not officially timed in snooker and the official
rules of snooker do not specify how they should be timed, instead leaving the timing to the discretion of the broadcaster. The only timing methodology
World Snooker sanctions in its events is the one employed in shot clock events where timing for a player's shot begins when the balls have come to rest from his opponent's previous shot. Under this convention the break would have been timed at 5 minutes and 15 seconds. World Snooker has since suggested that a break starts when the player strikes the cueball for the first time in a break which would result in a time of 5 minutes and 8 seconds; this is the time that both World Snooker and
Guinness World Records now officially acknowledge.
Youngest and oldest The youngest player to have made an officially recognised maximum break in professional competition is
Thanawat Thirapongpaiboon, who compiled a 147 at the
2010 RheinMain Masters aged .
Sean Maddocks is recognised by
Guinness World Records as the youngest player to make a maximum break in any recognised competition. Maddocks was old when he achieved the feat at the LiteTask ProAm series in Leeds on 9 July 2017. Judd Trump is known to have made a 147 at the Potters Under16 Tournament in 2004 at the age of ; however, this break is not recognised by
Guinness World Records. The oldest player to have made a maximum in professional competition is Ronnie O'Sullivan, who made two 147 breaks in his 2025 Saudi Arabia Snooker Masters semi-final against
Chris Wakelin, when he was aged 49 years and 253 days. ==Prize money==