In 2018, championships were held across three continents to determine the best players in major cue sports, including snooker, pool, and English billiards. While these are mostly single player sports, some matches and tournaments are held as either doubles or as team events. The snooker season runs between May and April; the pool and billiards seasons run through the calendar year.

Four men's adult world championships were held in 2018, Mark Williams won the World Snooker Championship, Joshua Filler holding the WPA World Nine-ball Championship, Sourav Kothari the World Billiards Championship, and Dick Jaspers winning the UMB World Three-cushion Championship. Three women's world championships were also held, with Han Yu winning the WPA Women's World Nine-ball Championship, the World Billiards Championship being won by Emma Bonney and Ng On-yee winning the World Women's Snooker Championship.

The snooker Triple Crown featured Ronnie O'Sullivan winning the UK Championship, while the Masters was won by Mark Allen. In pool, the Mosconi Cup was won by the US team, with Skyler Woodward as the most valuable player. Peter Gilchrist won seven events in billiards, while Reanne Evans won six women's snooker events. The events below are professional and pro-am cue sports tournaments from the year of 2018, as well as select amateur snooker events used for qualification to the World Snooker Tour.

Pool The cue sport pool encapsulates several disciplines, such as straight pool, eight-ball, and nine-ball. Joshua Filler won the WPA World Nine-ball Championship, while the World Cup of Pool was won by China. In events where there was more than one competition, (m) refers to men, (f) to female, (s) to seniors and (u21) refers to under-21 competitions.

+ Date(s)TournamentLocationResult–4 World Pool Masters Gibraltar Niels Feijen defeated Shane Van Boening, 8–4–20World Cup of Pool China (Shanghai) China A defeated Austria, 10–3–31 European Pool Championships Netherlands (Veldhoven) Germany won 24 medals, ahead of Poland with 12–15 Kremlin World Cup Russia (Moscow) Niels Feijen defeated Alexander Kazakis 8–7–7 Mosconi Cup England (London) Team USA defeated Team Europe 11–9–10WPA Women's World Nine-ball Championship Qatar (Doha) Han Yu defeated Wang Xiaotong 5–0–20 WPA World Nine-ball Championship Qatar (Doha) Joshua Filler defeated Carlo Biado 13–10

Euro Tour The Euro Tour is a professional nine-ball series run across Europe by the European Pocket Billiard Federation. The season featured seven events, with six tournaments for each gender. + Date(s)TournamentLocationResult–4 Dynamic Billiard Treviso Open Italy (Treviso) –15 Sankt Johann im Pongau Open Austria (St Johann im Pongau) –4 Veldhoven Open Netherlands (Veldhoven) –23 Leende Open Netherlands (Leende) Shane Van Boening defeated Eklent Kaçi, 9–8–22 Portugal Open Portugal (Braga) Kristina Tkach defeated Marharyta Fefilava 7–01–14 Klagenfurt Open Austria (Klagenfurt) –18 Treviso Open Italy (Treviso)

English billiards The English billiards season ran from August to July. Sourav Kothari and Emma Bonney won the World Billiards Championships for each gender. + Date(s) TournamentLocationResult–24 European Open Ireland (Carlow) Peter Gilchrist defeated David Causier 1083–911–6 Asian Grand Prix Singapore Peter Gilchrist defeated Robert Hall 6–4–15 ABSC Pacific International Australia (Melbourne) Robert Hall defeated Matthew Bolton 6–4–26 World Billiards Championship England (Leeds) Sourav Kothari defeated Peter Gilchrist, 1134–944 (m) Emma Bonney defeated Rebecca Kenna 329–209 (f)–18 IBSF World Billiards Championship (150-Up) Myanmar (Yangon) Pankaj Advani defeated Nay Thway Oo 6–2 IBSF World Billiards Championship (Long-Up) Pankaj Advani defeated Bhaskar Balachandra 1500–299

World Billiards Open + Date(s) TournamentLocationResult–28Scottish Open Scotland (Kirkcaldy) Peter Gilchrist defeated Robert Marshall 521–265–11South Australian Open Australia (Adelaide) Peter Gilchrist defeated Steve Mifsud 1179–410 – April 2 UK Open England (Leeds) Peter Gilchrist defeated Robert Hall 796–667–8 Sydney Open Australia (Sydney) Peter Gilchrist defeated Michael Pearson 987–345–29 English Open England (Cambridge) Robert Hall defeated Peter Gilchrist 614–378–20 Irish Open Ireland (Carlow) Peter Gilchrist defeated David Causier 811–375–19 NSC Open England (Leeds) David Causier defeated Robert Hall 749–198

Carom billiards Three-cushion billiards competitions overseen by the Union Mondal de Billiard (UMB) + Date(s) TournamentLocationResult–25 World Three-cushion Teams Championship Germany (Viersen) Choi Sung-won & Kang Dong-koong defeated Arnim Kahofer & Andreas Efler 40–23–20 World Three-cushion Women's Championship Turkey (İzmir) Therese Klompenhouwer defeated Orie Hida 30–24–23 World Three-cushion Juniors Championship Turkey (İzmir) Cho Myung-woo defeated Jang Dae-hyun 35–18–6World Three-cushion Championship Egypt (Cairo) Dick Jaspers defeated Jérémy Bury with the best –25 Switzerland (Lausanne) Eddy Merckx defeated 40–33

Three-Cushion World Cup The Three-Cushion World Cup is an annual three-cushion series of tournaments hosted by the UMB. Seven events were held, with the overall winner being Frédéric Caudron.

+ Date(s) TournamentLocationResult–29 Turkey (Antalya) Winner: Frédéric Caudron, 2nd place: , 3rd place: & Dani Sánchez–27 Viet Nam (Ho Chi Minh City) Winner: , 2nd place: , 3rd place: & Frédéric Caudron–17 Belgium (Blankenberge) Winner: Dick Jaspers, 2nd place: Semih Saygıner, 3rd place: Nikos Polychronopoulos & Eddy Merckx–9 Portugal (Porto) Winner: Frédéric Caudron, 2nd place: Tayfun Taşdemir, 3rd place: Choi Sung-won & –28 France (La Baule) Winner: , 2nd place: , 3rd place: Frédéric Caudron & Semih Saygıner–18 South Korea (Seoul) Winner: Eddy Merckx, 2nd place: Filippos Kasidokostas, 3rd place: Dick Jaspers & Kim Bong-Chul–8 Egypt (Hurghada) Winner: Dick Jaspers, 2nd place: Frédéric Caudron, 3rd place: & Semih Saygıner

Snooker

The World Snooker Tour season begins in July and ends in May. Mark Williams won his third World Snooker Championship by defeating John Higgins 18–16 in the final. Ng On-yee also won her third Women's World Snooker Championship with a 5–0 win over Maria Catalano in the final.

World ranking + Date(s)TournamentLocationResult – February 4 German Masters Germany (Berlin) Mark Williams defeated Graeme Dott 9–1–11 Snooker Shoot Out England (Watford) Michael Georgiou defeated Graeme Dott 67–56–25 World Grand Prix England (Preston) Ronnie O'Sullivan defeated Ding Junhui 10–3 – March 4Welsh Open Wales (Cardiff) John Higgins defeated Barry Hawkins 9–7–11Gibraltar Open Gibraltar Ryan Day defeated Cao Yupeng 4–0–25Players Championship Wales (Llandudno) Ronnie O'Sullivan defeated Shaun Murphy 10–4–8China Open China (Beijing) Mark Selby defeated Barry Hawkins 11–3 – May 7 World Snooker Championship England (Sheffield) Mark Williams defeated John Higgins 18–16–29 Riga Masters Latvia (Riga) Neil Robertson defeated Jack Lisowski 5–2–12 World Open China (Yushan) Mark Williams defeated David Gilbert 10–9–26 Paul Hunter Classic Germany (Fürth) Kyren Wilson defeated Peter Ebdon 4–2–30 China Championship China (Guangzhou) Mark Selby defeated John Higgins 10–9–7European Masters Belgium (Lommel) Jimmy Robertson defeated Joe Perry, 9–6–21 English Open England (Barnsley) Stuart Bingham defeated Mark Davis 9–7 – November 4 International Championship China (Daqing) Mark Allen defeated Neil Robertson 10–5–18 Northern Ireland Open Northern Ireland (Belfast) Judd Trump defeated Ronnie O'Sullivan 9–8 – December 9UK Championship England (York) Ronnie O'Sullivan defeated Mark Allen 10–6–16 Scottish Open Scotland (Glasgow) Mark Allen defeated Shaun Murphy 9–7

Non-ranking + Date(s)TournamentLocationResult–21 Masters England (London) Mark Allen defeated Kyren Wilson 10–7–18 Romanian Masters Romania (Bucharest) Ryan Day defeated Stuart Bingham 6–5January 22 – Championship League England (Coventry) John Higgins defeated Zhou Yuelong 3–2–13 Vienna Snooker Open Italy (Vienna) Michael Georgiou defeated Ross Muir 5–4–15 Golden Q Cup Romania (Baia Mare) Luca Brecel defeated Michael Georgiou 5–1–31 Pink Ribbon England (Gloucester) Andrew Norman defeated Harvey Chandler 4–2 – August 4 Haining Open China (Haining) Mark Selby defeats Li Hang 5–4–16 Shanghai Masters China (Shanghai) Ronnie O'Sullivan defeated Barry Hawkins 11–9 –11 Champion of Champions England (Coventry) Ronnie O'Sullivan defeated Kyren Wilson 10–9

Challenge Tour

The Challenge Tour is a secondary non-professional snooker tour with events for invited players. Eight tournaments were played from the ten events in the 2018–19 season in 2018. + Date(s)TournamentLocationResult Challenge Tour 1 England (Burton) Brandon Sargeant defeated Luke Simmonds 3–1 Challenge Tour 2England (Preston) David Grace defeated Mitchell Mann 3–0 Challenge Tour 3 Latvia (Riga) Barry Pinches defeated Jackson Page 3–2 Challenge Tour 4 Germany (Fürth) Mitchell Mann defeated Dylan Emery 3–0 Challenge Tour 5 England (Derby) David Lilley defeated Brandon Sargeant 3–1 Challenge Tour 6 Belgium (Lommel) David Grace defeated Ben Hancorn 3–0 Challenge Tour 7 England (Preston) Joel Walker defeated Jenson Kendrick 3–0 Challenge Tour 8 Hungary (Budapest) Simon Bedford defeated David Lilley 3–1

World Seniors Tour

The World Seniors Tour is an amateur series open to players aged 40 and over. There were four events in the 2018 World Seniors Tour. The World Seniors Championship was won by Aaron Canavan. + Date(s)TournamentLocationResult–7 Seniors Irish Masters Ireland (Kildare) Steve Davis defeated Jonathan Bagley 4–0–24 World Seniors Championship England (Scunthorpe) Aaron Canavan defeated Patrick Wallace 4–3 Seniors Masters England (Sheffield) Cliff Thorburn defeated Jonathan Bagley 2–1–25 UK Seniors Championship England (Hull) Ken Doherty defeated Igor Figueiredo 4–1

Women's snooker + Date(s)TournamentLocationResult–18 British Open England (Stourbridge) Reanne Evans defeated Nutcharut Wongharuthai 4–0–17 World Women's Snooker Championship Malta (St. Paul's Bay) Ng On Yee defeated Maria Catalano 5–0–16 World Women's Under-21 Championship England (Leeds) Nutcharut Wongharuthai defeated Emma Parker 3–0World Women's Seniors Championship Jenny Poulter defeated Jackie Ellis 3–0World Women's 10-Red Championship Reanne Evans defeated Ng On Yee 4–1World Women's 6-Red Championship Reanne Evans defeated Ng On Yee 4–3World Women's Pairs Championship Reanne Evans & Maria Catalano defeated Laura Evans & Suzie Opacic 3–0–16 UK Women's Championship England (Leeds) Ng On-yee defeated Rebecca Kenna 4–1–7 European Women's Masters Belgium (Neerpelt) Reanne Evans defeated Nutcharut Wongharuthai 4–1–28 Australian Women's Open Australia (Sydney) Ng On-yee defeated Katrina Wan 4–2–25 Eden Women's Masters England (Gloucester) Reanne Evans defeated Rebecca Kenna 4–0 –16 IBSF World Team Championship Egypt (Marsa Alam) Waratthanun Sukritthanes and Siripaporn Nuanthakhamjan defeated Amee Kamani and Vidya Pillai 4–2

Amateur snooker championships