
The official rankings for professional snooker players are known as the world snooker ranks. They determine who qualifies automatically for World Snooker Tour tournaments. The World Professional Billiards and Snooker Association maintains rankings. In addition to providing players with an idea of their ranking, they provide useful statistics on the sport.
Judd Trump
Judd Trump is ranked in the top 10 worldwide snooker rankings. He is known for his amazing breaks and his dominance of the sport. He has won 23 ranking titles including the world championship. He is still relatively young, at only 33 years old, and has the potential to stay at the top of the sport for at least another decade. However, his age and the grind of the tour may wear him down.
Mark Selby
Mark Selby, an Englishman who is considered to be one of the greatest players in the world, is a great example. He is a former England under-15 champion and a recent World Snooker Championship Champion. He also has a strong background in pool. He was the 2006 WEPF Eight-Ball Pool Champion and a finalist in 2015's Chinese Pool World Championship. Selby hails originally from Leicester, England. He was coached by Malcolm Thorne, the brother of the legendary snooker player Willie Thorne.

Ronnie O'Sullivan
Ronnie O'Sullivan has spent 280 weeks at the top of the world snooker rankings. After reaching semi-finals in the Tour Championship's Tour Championship, his most recent move made him ahead Mark Selby. The Scot reached the top of the world in May 2002 and has since won 31 ranking title. Six World Championship titles, five UK Championships are just a few of his accomplishments.
Mark Williams
Mark Williams, currently ranked number 10, is one of the most skilled snooker players around. The Welshman became a member of the elite in 1995 with his wins at the Welsh Open and Benson & Hedges Masters. He won the second title with a respotted-black in the final. He won three ranking tournaments and became the fourth player ever to win three titles in one season.
Graeme Dott
Graeme Dott is the winner of two ranking titles. He also reached the finals at the China Open in 2010. His form has been inconsistent ever since. He has also been diagnosed with depression and has publicly discussed his struggle with it. The Australian ranks in the bottom half of world snooker rankings. However, he has a strong record at home.
Dotts's career
Graeme Dott began his professional career in 1994 and has steadily climbed the ranks of world snooker. In 2001, he reached the top 16 and remained there until 2009. He reached quarter-finals in the Welsh Open 1996 and 1997. He was second in the 1999 Scottish Open, and third in the 2001 British Open. He was also runner up at the 2004 World Championship as well as the 2005 Malta Cup. In 1999, he made his first competitive break of 147 at the British Open.

Dott's ranking
Dott's place in the world ranking of snooker has changed over the years. Six times he reached the top 16. In the 2007/8 season, Dott was ranked number 2. Dott's ranking has dropped since then.
Mark Williams' ranking
The world snooker ranking of Mark Williams has steadily increased over the past few decades. He has won many tournaments, including in the Players Championship Grand Final 2000. He also defeated Ronnie O'Sullivan in the final. He has been the number one ranking in the world several times. However, his biggest ranking victory came in 2001, when he defeated Anthony Hamilton in the final of the China Open.