In snooker, a century break (sometimes referred to as a ton) is a score of 100 points or more within one at the table without missing a shot and requires potting at least 25 consecutive balls. The ability to score century is regarded as a mark of the highest skill in snooker, while the first career century has been described by Ronnie O'Sullivan as the "ultimate milestone for any snooker player".
Over 20,000 century breaks have been recorded by snooker players throughout professional tournaments. In 2014, Neil Robertson became the first person to have scored over 100 century frames throughout a single season, a threshold that only some 50 other players had surpassed throughout their entire careers. Ronnie O'Sullivan holds the record for the most career centuries with over 900 century breaks.
A century is a score of 100 points or more within one at the table, without missing a shot. The player does this by potting and alternately, where the coloured balls are repositioned on their starting locations. After repositioning the coloured ball paired to the last red on the table, the six coloured balls are potted in order of their increasing value. Because a break is defined as series of consecutive by a player during a single , scoring 100 points over the course of a whole frame does not necessarily constitute a century break, as it must be done on a single turn at the table. Points for a foul shot by the opponent do not count in a player's break.
Under normal circumstances, the highest possible century in snooker is 147 (a "maximum break"), composed of 15 reds (one point each), 15 blacks (seven points each) and the six remaining colours; yellow, green, brown, blue, pink and black potted consecutively (two through seven points each for a total of 27). If for example only the least-valued colour (yellow, two points) would be used instead of the black ball, the break value would only be 72 points. This means that only a single century break is possible in a of snooker under a limited number of combinations, but it requires the potting of at least 25 consecutive balls (10 x (1 + 7) + 2 + 3 + 4 + 5 + 6 = 100). To score one, there must be at least ten reds on the table when the player comes to play since if there are only nine reds left, only 99 (= 9 × (1 + 7) + 27) points may be scored. An exception exists if the opponent and leaves the incoming player on all the remaining reds. In such a situation, the player can nominate one of the other as a red, known as a "", which carries the same value as a red for just that shot, and therefore, a century break is still possible with only nine reds left.
Breaks above 147 are possible (up to 155) when an opponent fouls and leaves a with all fifteen reds still remaining on the table, creating a situation identical to as if there were 16 red balls on the table. This has happened only once in professional competition, when Jamie Burnett made a 148 at the qualifying stage of the 2004 UK Championship.
Players with 100 century breaks in professional competition
A "century of centuries" refers to a total of 100 breaks of at least 100 points each. Only 15 players had reached this milestone in professional snooker tournaments by December 2001. With an increase in the occurrence of centuries in the past decades, another 27 players achieved this landmark by October 2011, and by the end of the 2013/2014 season the total number of players reaching this threshold had grown to 52. Only Neil Robertson has achieved one hundred centuries in a single season, during 2013/2014. By the end of the 2017 Shanghai Masters 63 players had reached 100 century breaks.  The following players are reported to have passed 100 breaks and at least the given threshold above this.
- Joe Davis compiled the first televised century break in 1962.
- The record for most century breaks scored in official tournament play is held by Ronnie O'Sullivan with over 900. The record was previously held by Stephen Hendry who compiled 775 centuries over the course of his career.
- The first player to record 1000 centuries in public performance was Horace Lindrum.
- Stacey Hillyard became the first female to record a competitive century in January 1985.
- The quickest recorded century break in tournament play was by Tony Drago at 1996 UK Championship, taking 3 minutes 31 seconds (211 seconds) to score a hundred points.
- The youngest player to record a century break is Michael White at the age of nine in March 2001.
- The first player to reach 50 centuries in a season was Hendry, with 53 century breaks from the 1994/1995 season.
- Hendry achieved another 51 centuries during the 1995/1996 season, while O'Sullivan came close with 48 in the 2006/2007 season, but it was not until the 2010/2011 season when the record was finally broken by Mark Selby with 54 centuries, and again by Selby with 55 century breaks in the 2011/2012 season. Judd Trump took the record with 61 centuries in the 2012/2013 season and the record was broken for the fourth successive season in 2013/2014 when Neil Robertson overtook Trump's tally.
- The first (and so far, only) player to reach the 'century of centuries' (100 century breaks) mark during a single season is Neil Robertson in the 2013/2014 season on 30 April 2014 during his quarter final match against Judd Trump at the 2014 World Championship. In total, Robertson compiled 103 century breaks throughout the season.
- The most centuries made by a player in a single match during a professional tournament is seven and the record is shared by Stephen Hendry and Ding Junhui.
- Hendry set the record during the final of the 1994 UK Championship. During this match, Hendry compiled six centuries in a span of eight frames.
- Ding tied the record in his semi-final match at the 2016 World Championship. This is also a record for a match at the Crucible Theatre, beating the previous record of six shared by Mark Selby and Ronnie O'Sullivan.
- Selby's six-century haul in a second round match at the 2011 World Championship set the record for a best-of-25 match.
- O'Sullivan's tally of six centuries during the final of the 2013 World Championship set the record for a world final at the Crucible; the record for a final previously stood at five, jointly held by Hendry (in 1997), John Higgins (1998) and Matthew Stevens (2000).
- O'Sullivan holds the record for making the most centuries in a best-of-9 match compiling five centuries (including a 147) to beat Ali Carter 5–2 at the 2007 Northern Ireland Trophy.
- Fergal O'Brien holds the record for most centuries in a best-of-11 match, compiling five centuries to beat Barry Hawkins 6–5 at the 2016 UK Championship.
- The record for combined number of century breaks in a single game by both players is ten, achieved by Ding Junhui (seven) and Alan McManus (three) in their semi-final tie at the 2016 World Championship.
- The most century breaks in a ranking event is eighteen centuries by Ding during the 2016 World Championship, compiling three during qualifying and a further fifteen at the Crucible Theatre during the main event. Hendry previously set a record of sixteen at the 2002 World Championship, which remains a televised, Crucible and venue record.
- O'Sullivan has compiled more century breaks than any other player in the World Championship competition at the Crucible Theatre. He broke Hendry's record of 127 at the 2013 Championship, extending his total to 162 up to and including the 2017 Championship. John Higgins is the only other player besides Hendry and O'Sullivan to compile more than 100 centuries at the world championship in the Crucible era.
- An aggregate record of 86 centuries was set at the 2015 World Championship. The record was tied the following year.
- The record for most consecutive centuries in a match is shared by Kyren Wilson and Anthony Hamilton who compiled six between them at a qualifier for the China Open on 11 February 2016. The previous record of five centuries was jointly held by Ronnie O'Sullivan and Stephen Hendry at the final of the 2003 British Open, and by Stephen Maguire and Neil Robertson in a quarter-final at the 2009 Masters.
- Stephen Maguire made five consecutive centuries at the 2004 British Open comprising the last three frames of his quarter final and the first two frames of the semi-final.
- Only three players have made four consecutive centuries in a match: Higgins in the final of the 2005 Grand Prix, Shaun Murphy at the 2007 Welsh Open and Robertson at the 2013 Ruhr Open.
- Davis, Steve (7 January 2015). "Steve Davis charts the rise of snooker's century breaks". BBC Sport. Retrieved 13 January 2015.
- Jamie Shaw (2015-03-02). "Ruthless Neil Robertson regains Gdynia Open snooker title - snooker-news.com". Livesnooker.com. Retrieved 2015-09-20.
- Fitzgibbon, Liam (1 May 2014). "Neil Robertson makes century of snooker 100s". The Sydney Morning Herald. Retrieved 2 May 2014.
- BCA Rules Committee (November 1992). Billiards: The Official Rules and Record Book. Iowa City, IA, US: Billiard Congress of America. ISBN 1-878493-02-7.
- Everton, Clive (18 October 2004). "Burnett's break goes one better". The Guardian. Retrieved 9 May 2012.
- Everton, Clive (December 16, 2001). "Century king Ronnie". Snooker. BBC Sport. Retrieved May 5, 2014.
- "Snooker's Leading Century Makers". cajt.pwp.blueyonder.co.uk. Chris Turner's Snooker Archive. Archived from the original on March 8, 2013. Retrieved 30 October 2011.
- "Robertson Wins / Makes Historic Century". World Snooker. World Professional Billiards and Snooker Association. 30 April 2014. Archived from the original on May 2, 2014. Retrieved 1 May 2014.
- "Snooker world number one Neil Robertson - I'll break record with 100th century - Mirror Online". Mirror.co.uk. 2013-11-22. Retrieved 2015-09-20.
- "Century Break". RKG Snooker. November 17, 2017. Retrieved November 18, 2017.
- "Ronnie O'Sullivan hits 900th career century in semi-final win over Anthony Hamilton". Eurosport. 10 November 2017. Retrieved 11 November 2017.
- Phillips, Owen (2 May 2012). "Stephen Hendry retires". BBC. Retrieved 2 May 2012.
- Chowdhury, Saj (21 January 2018). "Mark Allen beats John Higgins 6-3 to join Kyren Wilson in final". BBC. Retrieved 21 January 2018.
- "Robertson racks up 500th century break". BBC. 19 April 2017. Retrieved 19 April 2017.
- "Selby Makes 500th Century". World Snooker. 5 January 2018. Retrieved 11 January 2018.
- "Judd Trump net worth: The No.3 snooker player competing in Masters 2018 has THIS sum". Snooker Globe. 25 March 2018. Retrieved 15 August 2018.
- Crawford, Simon (31 October 2016). "Home comforts for Ding Junhui". Sporting Life. Retrieved 5 December 2016.
- Kane, Desmond (26 April 2016). "Marco Fu interview: How legacy of legendary snooker boozer 'Big Bill' Werbeniuk lives on". Eurosport. Retrieved 5 December 2016.
- Kalb, Rolf (14 March 2014). "World Open - Shaun Murphy mit Fluke im Halbfinale" (in German). Yahoo! Eurosport. Retrieved 28 April 2014.
- Hafez, Shamoon (17 April 2016). "Steve Davis: Snooker great retires after 38-year career". BBC. Retrieved 22 April 2016.
- "Steve Davis Retires From Snooker". World Snooker. World Professional Billiards and Snooker Association. 17 April 2016. Archived from the original on 22 April 2016.
- Happe, Liam (1 April 2012). "Ebdon edges Maguire in epic final". Yahoo! Sport – UK & Ireland. Yahoo! and Eurosport. Retrieved 1 April 2012.
- Crawford, Simon (9 March 2015). "Williams to roll back the years". Sporting Life. Retrieved 17 December 2015.
- Kalb, Rolf (18 February 2013). "Welsh Open - Maguire beendet Durststrecke" (in German). Yahoo! Eurosport. Retrieved 18 February 2013.
- "2013 Masters Snooker: Mark Allen vs Mark Davis betting preview". BetAsia. 13 January 2013.
- Hendon, Dave (1 December 2013). "Opportunity Knocks for New faces". Snooker Scene Blog. Retrieved 28 April 2013.
- Kalb, Rolf (6 November 2012). "Snooker - Ding souverän - aber verpasst Maximum-Break" (in German). Yahoo! Eurosport. Archived from the original on 10 November 2012. Retrieved 6 November 2012.
- Davies, Jonathan (29 October 2016). "Ruthless Selby brushes past Bingham to set up Ding showdown in the International Championship final". livesnooker.com. Retrieved 5 December 2016.
- Welton, Blake. "Who are the Welsh players set to compete at the Snooker World Grand Prix?". Daily Post. Retrieved 2015-09-20.
- "Tournament Blogs". World Snooker. April 15, 2011. Retrieved May 5, 2014.
- "Masters: Ronnie O'Sullivan to play Barry Hawkins in final". BBC Sport. 16 January 2016. Retrieved 16 January 2016.
- Phillips, Owen (2014-11-28). "BBC Sport - UK Championship 2014: David Gilbert keen to build on victory". Bbc.com. Retrieved 2015-09-20.
- "Ford aiming for major breakthrough". World Snooker. September 4, 2012. Retrieved June 5, 2014.
- "YouTube". YouTube. Retrieved 2015-09-20.
- "Snooker: Stephen Hendry recognises shades of himself in Neil Robertson". Independent. May 2, 2014. Retrieved May 4, 2014.
- "Paul Hunter". Telegraph. Retrieved 2015-09-20.
- "Preston Preview". World Snooker. March 24, 2014. Archived from the original on June 6, 2014.
- Ben Blackmore. "Snooker World Games 2013: British Duo Experience Failure". Bleacher Report. Retrieved 2015-09-20.
- "Trump continues form in Poland". Snooker HQ. February 8, 2014. Retrieved June 5, 2014.
- Day, Michael (2015-04-17). "Snooker Tips — World Championship Day 1 Tips — Mark Selby v Kurt Maflin". WeLoveBetting.co.uk. Retrieved 2015-09-20.
- Hafez, Shamoon (15 January 2015). "Masters 2015: Ronnie O'Sullivan breaks Stephen Hendry's record". BBC Sport. Retrieved 15 January 2015.
- Hayton, Eric (2004). The CueSport Book of Professional Snooker. Suffolk: Rose Villa Publications. p. 5. ISBN 978-0-9548549-0-4.
- "On This Week: Nugget 147 - Snooker". Eurosport. 2010-01-11. Retrieved 2015-09-20.
- Turner, Chris. "Various Snooker Records". Chris Turner's Snooker Archive. Archived from the original on January 28, 2013. Retrieved 11 May 2011.
- Everton, Clive (24 April 2011). "Mark Selby breaks Crucible century record and Stephen Hendry". The Guardian. Retrieved 5 May 2013.
- Goulding, Neil (25 April 2011). "Snooker: Selby sets record to leave Hendry clinging on". The Independent. Archived from the original on 27 April 2011.
- Dee, John (1 May 2008). "Ronnie O'Sullivan pegs back Stephen Hendry". The Daily Telegraph. Retrieved 5 May 2013.
- "Betfred.com World Championship (2011)". Snooker.org. Retrieved 5 May 2013.
- Hendon, Dave (10 July 2011). "Wuxi Rivalry for World Cup Team-Mates". Snooker Scene Blog. Retrieved 5 May 2013.
- Nunns, Hector (24 April 2013). "Judd Trump sets century breaks record in victory over Dominic Dale". The Times. Retrieved 5 May 2013.
- "Selby Takes First UK Crown". World Snooker. World Professional Billiards and Snooker Association. 10 December 2012. Retrieved 5 May 2013.
- "Murphy 147 / Robertson Centuries Record". World Snooker. World Professional Billiards and Snooker Association. 9 January 2014. Archived from the original on 9 January 2014. Retrieved 23 April 2014.
- "Neil Robertson hits historic 100th century break". BBC Sport. 30 April 2014. Retrieved 30 April 2014.
- "Dafabet World Championship: century breaks". World Snooker. World Professional Billiards and Snooker Association. Archived from the original on 5 May 2014. Retrieved 5 May 2014.
- Bazeley, Marc (18 April 2014). "Dafabet World Snooker Championship: Neil Robertson takes aim at Don Bradman's mark". Cambridge News. Archived from the original on 24 April 2014. Retrieved 23 April 2014.
- "UK Championship (1994)". Snooker.org. Retrieved 7 May 2013.
- "China's Ding Into First World Final". World Snooker. World Professional Billiards and Snooker Association. 30 April 2016. Archived from the original on 1 May 2016.
- "Ronnie O'Sullivan takes the title". Sporting Life. 6 May 2013. Archived from the original on 9 May 2013.
- "World Snooker: Record-breaking Selby close to victory". BBC Sport. BBC. 24 April 2011. Retrieved 24 April 2011.
- Goulding, Neil (6 May 2013). "Snooker: Ronnie O'Sullivan defends world title against Barry Hawkins as if he'd never been away". The Independent. Retrieved 6 May 2013.
- "Five-Ton Fergal Floors Hawk". World Snooker. World Professional Billiards and Snooker Association. 27 November 2016. Archived from the original on 27 November 2016.
- "World Championship Qualifiers – Centuries". World Snooker Live Scores. World Professional Billiards and Snooker Association. Archived from the original on 18 May 2016.
- "World Championship – Centuries". World Snooker Live Scores. World Professional Billiards and Snooker Association. Archived from the original on 17 May 2016.
- "Ronnie O'Sullivan coy over defending world snooker title". BBC Sport. 7 May 2013. Retrieved 7 May 2013.
- "Crucible centuries since 1977". Sporting Life. 14 April 2016. Archived from the original on 30 April 2016.
- "World Championship: Centuries". World Snooker Live Scores. World Professional Billiards and Snooker Association. Archived from the original on 30 April 2016.
- "World Championship: Centuries". World Snooker Live Scores. World Professional Billiards and Snooker Association. Archived from the original on 27 April 2017.
- "World Snooker Championship 2016: Complete results and centuries". BBC. 2 May 2016. Retrieved 2 May 2016.
- "Kyren Wilson & Anthony Hamilton make history with six straight tons". BBC. 11 February 2016. Retrieved 30 April 2014.
- "Trump Storms Into Last 16". World Snooker. World Professional Billiards and Snooker Association. 24 April 2011. Retrieved 6 October 2013.
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