January
- Seamaster 2018 ITTF World Tour Hungarian Open, Budapest (HUN) – Qualification: 16-17 Jan
- Seamaster 2018 ITTF World Tour Hungarian Open, Budapest (HUN): 18-21 Jan
February
- 2017 World Junior Circuit Finals, Luxembourg (LUX): 2-4 Feb
- ITTF Europe Top 16 Cup, Montreux (SUI): 3-4 Feb
- Oman Junior & Cadet Open, ITTF Premium Junior Circuit, Muscat (OMA): 7-11 Feb
- Road to Buenos Aires 2018 YOG Series – Europe, Hodonin (CZE): 12-13 Feb
- Czech Junior & Cadet Open, ITTF Premium Junior Circuit, Hodonin (CZE): 14-18 Feb
- Central America U15/U18 San Salvador (ESA), 20-23 Feb
- Swedish Junior & Cadet Open, ITTF Junior Circuit, Orebro (SWE): 21-25 Feb
- Team World Cup, London (ENG): 22-25 Feb
March
- ITTF African Cup, Nairobi (KEN): 1-3 Mar
- Latin American Senior Championships, Habana (CUB), 4-9 Mar
- 2018 European U21 Championships, Minsk (BLR): 8-11 Mar
- Seamaster 2018 ITTF World Tour Platinum Qatar Open, Doha (QAT) – Qualification: 6-7 Mar
- Seamaster 2018 ITTF World Tour Platinum Qatar Open, Doha (QAT): 8-11 Mar
- ITTF Challenge, Polish Open, Spala (POL): 13-17 Mar
- ITTF Oceania Championships, Gold Coast (AUS), 15-19 Mar
- PTT Lignano Master Open, Lignano (ITA): 14-17 Mar
- Tunisia Junior & Cadet Open, ITTF Junior Circuit, Rades (TUN): 19-23 Mar
- Italy Junior & Cadet Open, ITTF Premium Junior Circuit, Lignano (ITA): 21-25 Mar
- South America U15/U18 Santiago de Chile (CHI), 21-25 Mar
- Seamaster 2018 ITTF World Tour Platinum German Open, Bremen (GER) – Qualification: 20-22 Mar
- Seamaster 2018 ITTF World Tour Platinum German Open, Bremen (GER): 23-25 Mar
- Road to Buenos Aires 2018 YOG Series – Africa, Rades (TUN): 24-25 Mar
- ITTF Challenge, Spanish Open, Guadalajara (ESP): 28 Mar – 1 Apr
- Asian Junior & Cadet Championships Qualification Event- West Asia, Amman (JOR): 29 Mar – 1 Apr
April
- Cote d’Ivoire Junior & Cadet Open, ITTF Junior Circuit, Abidjan (CIV): 1-5 Apr
- Opatija Milenij Open, Opatija (CRO): 6-8 Apr
- African Junior and Cadet Championships, Abidjan (CIV): 7-13 Apr
- Commonwealth Games, Gold Coast (AUS): 4-15 Apr
- ITTF Challenge, Slovenia Open, Otocec (SLO): 2-6 Apr
- LION 31st ITTF-ATTU Asian Cup, Yokohama (JPN): 6-8 Apr
- Paraguay Junior & Cadet Open, ITTF Junior Circuit, Asuncion (PAR): 9-13 Apr
- ITTF Challenge, Croatia (Zagreb) Open, Zagreb (CRO): 10-14 Apr
- Road to Buenos Aires 2018 YOG series – Latin America, Asuncion (PAR): 14-15 Apr
- Belgium Junior & Cadet Open, ITTF Junior Circuit, Spa (BEL): 18-22 Apr
- Asian Junior & Cadet Championships Qualification Event-East Asia, Ulaanbaatar (MGL): 20-21 Apr
- Asian Junior & Cadet Championships Qualification Event-South Asia, Maldives (MDA): 20-22 Apr
- French Junior & Cadet Open, ITTF Premium Junior Circut, Metz (FRA): 25-29 Apr
-
Memorial of A. Shkala, Belorussian Open Tournament, Minsk (BLR), 26-28 Apr
- Liebherr World Team Championships, Halmstad (SWE): 29 Apr – 6 May
May
- PTT Slovakia Open, Bratislava (SVK): 2-5 May
- Road to Buenos Aires 2018 YOG series – Asia, Bangkok (THA): 7-8 May
- PTT Slovenia Open, Lasko (SLO): 9-12 May
- Spanish Junior & Cadet Open, ITTF Junior Circuit, Platja d’Aro (ESP): 9-13 May
- Thailand Junior & Cadet Open, ITTF Golden Series Junior Circuit, Bangkok (THA): 9-13 May
- 2018 Asian Junior Championships Qualification (Middle Asia), Tehran (IRI): 15-16 May
- ITTF Challenge, Thailand Open, Bangkok (THA): 16-20 May
- Slovak Junior Open, ITTF Junior Circuit, Senec (SVK): 17-20 May
- ITTF Oceania Cup, Port Vila (VAN): 18-19 May
- Polish Junior & Cadet Open, ITTF Premium Junior Circuit, Wladyslawowo (POL): 23-27 May
- Seamaster 2018 ITTF World Tour Hang Seng Hong Kong Open, Hong Kong (HKG) – Qualification: 22-23 May
- Seamaster 2018 ITTF World Tour Hang Seng Hong Kong Open, Hong Kong (HKG): 24-27 May
- Central America Senior Championships, San Salvador (ESA), 24-27 May
- North European Table Tennis Championships, Haapsalu (EST), 25-27 May
- Canada Junior & Cadet Open, ITTF Junior Circuit, Markham (CAN): 28-31 May
- Seamaster 2018 ITTF World Tour Platinum Kaisa China Open, Shenzhen (CHN) – Qualification: 29 May – 30 May
- Seamaster 2018 ITTF World Tour Platinum Kaisa China Open, Shenzhen (CHN): 31 May – 3 Jun
- Caribbean U15/U18, Habana (CUB), TBD May
June
- Road to Buenos Aires 2018 YOG series – North America, Markham (CAN): 1-2 Jun
- 2018 ITTF-Oceania Junior Championships, Rarotonga,( COK): 1-2 Jun
- South American Games, Cochabamba (BOL): 1-8 Jun
- Cook Islands Junior & Cadet Open, ITTF Junior Circuit, Rarotonga (COK): 4-7 Jun
- Seamaster 2018 ITTF World Tour LION Japan Open, Kitakyushu (JPN) – Qualification: 6-7 Jun
- Seamaster 2018 ITTF World Tour LION Japan Open, Kitakyushu (JPN): 8-10 Jun
- Road to Buenos Aires 2018 YOG series – Oceania, Rarotonga (COK): 8-9 Jun
- ITTF Challenge, DPR Korea (Pyongyang) Open, Pyongyang (PRK): 13-17 Jun
- ITTF Pan Am Cup, Asuncion (PAR): 15-17 Jun
- PTT Sant Cugat Open 2018, Sant Cugat-Barcelona (ESP): 8-10 Jun
- Lithuanian Cadet and Mini Cadet Open, Vilnius (LTU): 15-17 Jun
- Mediterranean Games, Tarragona (ESP): 22 Jun – 1 Jul
- North European Table Tennis Youth Championships, Haapsalu (EST), 26-28 Jun
- PTT US Open 2018, Las Vegas (USA): 28-30 Jun
July
- PTT 2nd Indonesia Open, Jakarta (INA): 1-3 Jul
- China Junior & Cadet Open, ITTF Golden Series Junior Circuit, Taicang (CHN): 4-8 Jul
- 2018 South East Asian Junior Championships, Palawan Puerto (PHI): 4-8 Jul
- Pan Am Juniors Championships, Santo Domingo (DOM): 10-15 Jul
- European Youth Championships, Cluj Napoca (ROU): 15-24 Jul
- African Youth Games, Algiers (ALG): 17-27 Jul
- Seamaster 2018 ITTF World Tour Platinum SHINHAN Korea Open, Daejeon (KOR) – Qualification: 17-18 Jul
- Seamaster 2018 ITTF World Tour Platinum SHINHAN Korea Open, Daejeon (KOR): 19-22 Jul
- Central America and Caribbean Games, Baranquilla (COL): 19-24 Jul
- Jordan Junior & Cadet Open, ITTF Junior Circuit, Amman (JOR): 25-29 Jul
- Seamaster 2018 ITTF World Tour Platinum Australian Open, Geelong (AUS) – Qualification: 24-25 Jul
- Seamaster 2018 ITTF World Tour Platinum Australian Open, Geelong (AUS): 26-29 Jul
- Arab Table Tennis Championship, Cairo (EGY): 30 Jul-6 Aug
August
- Hong Kong Junior & Cadet Open, ITTF Golden Series Junior Circuit, Hong Kong (HKG): 1-5 Aug
- Asia-Europe All Stars Challenge, Nantong (CHN): 4-5 Aug
- Latin America Cadet Championships, San Jose (CRC): 7-12 Aug
- ITTF Challenge, Seamaster Nigeria Open, Lagos (NGR): 8-12 Aug
- 40th Flanders International Table Tennis Tournaments 2018, Oostende (BEL) Belgium Coast: 10-14 Aug
- 20th Flanders ITT Ostend Masters 2018 , Oostende (BEL) Belgium Coast: 11 Aug
- 2018 Asian Junior & Cadet Championships, Nay Pyi Taw (MYA): 13-18 Aug
- El Salvador Junior & Cadet Open, ITTF Junior Circuit, San Salvador (ESA): 15-19 Aug
- Seamaster 2018 ITTF World Tour Asarel Bulgaria Open, Panagyurishte (BUL) – Qualification: 14-15 Aug
- Seamaster 2018 ITTF World Tour Asarel Bulgaria Open, Panagyurishte (BUL): 16-19 Aug
- 2018 Asian Games, Jakarta and Palembang (INA): 18 Aug – 2 Sep
- Chinese Taipei Junior & Cadet Open, ITTF Golden Series Junior Circuit, Taipei (TPE): 22-26 Aug
- Seamaster 2018 ITTF World Tour, Czech Open, Olomouc (CZE): 21-22 Aug
- Seamaster 2018 ITTF World Tour, Czech Open, Olomouc (CZE): 23-26 Aug
- 14th Euro Mini Champ’s, Schiltigheim (FRA): 24-26 Aug
- PTT China Open, Beijing (CHN): 29 Aug – 2 Sep
September
- ITTF African Championships, Port Louis (MRI): 3-9 Sep
- Luxembourg Open, Luxembourg (LUX): 5-8 Sep
- Europe Youth Top 10, Vila Real (POR): 7-9 Sep
- Croatia Junior & Cadet Open, ITTF Premium Junior Circuit, Varazdin (CRO): 12-16 Sep
- Liebherr 2018 ITTF European Championships, Alicante (ESP): 18-23 Sep
- Serbia Open, ITTF Junior Circuit, Belgrade (SRB): 19-23 Sep
- PTT Czech Open, Ostrava (CZE): 20-22 Sep
- Caribbean Senior Championships, Montego Bay (JAM), 24-29 Sep
- Uncle Pop 2018 ITTF Women’s World Cup, Chengdu (CHN): 28-30 Sep
October
- 3rd Youth Olympic Games, Buenos Aires (ARG): 6-18 Oct
- PTT World Championships, Lasko-Cejle (SLO): 15-21 Oct
- Liebherr 2018 Men’s World Cup, Paris (FRA): 19-21 Oct
- ITTF World Cadet Challenge, Tottori (JPN): 23-31 Oct
- ITTF Challenge, Belgium Open, De Haan (BEL): 23-27 Oct
- Egypt Open, ITTF Junior Circuit, Sharm El Sheikh (EGY): 24-28 Oct
- Seamaster 2018 ITTF World Tour Swedish Open, Stockholm (SWE) – Qualification: 29-31 Oct
November
- Seamaster 2018 ITTF World Tour Swedish Open, Stockholm (SWE): 1-4 Nov
- Slovak Cadet Open, ITTF Junior Circuit, Senec (SVK): 2-4 Nov
- Hungary Junior & Cadet Open, ITTF Premium Junior Circuit, Szombathely (HUN): 7-11 Nov
- PTT Alwatani Championships, Amman (JOR): 8-10 Nov
- Seamaster 2018 ITTF World Tour Platinum Liebherr Austrian Open, Linz (AUT) – Qualification: 6-7 Nov
- Seamaster 2018 ITTF World Tour Platinum Liebherr Austrian Open, Linz (AUT): 8-11 Nov
- Estonian Junior and Cadets Open, Haapsalu (EST): 9-11 Nov
- ITTF Challenge, Belgosstrakh Belarus Open, Minsk (BLR): 13-18 Nov
- PTT Spanish Open, Almeria (ESP): 15-18 Nov
- ITTF Pan Am Championships, Santiago (CHI): 20-25 Nov
- Portugal Junior & Cadet Open, ITTF Junior Circuit, Guimarães (POR): 27-30 Nov
- PTT Copa Tango Open, Buenos Aires (ARG): 28 Nov- 2 Dec
December
- World Junior Table Tennis Championships, Bendigo (AUS): 2-9 Dec
- Russian Cadet and Hopes Tournament in memory of Nikolay Nikitin, St. Petersburg (RUS): 5-9 Dec
- PTT Copa Costa Rica, San José (CRC): 6-8 Dec
- Finlandia Open, Helsinki (FIN): 6-9 Dec
- Seamaster 2018 ITTF World Tour Grand Finals, Incheon (KOR): 13-16 Dec
- PTT Thailand Open, Chiang Mai (THA): 19-22 Dec
- US Open, Orlando, Florida (USA): 17-22 Dec
Note: For the World Tour, qualification will be played 2 OR 3 days prior to the main event dates and it’s indicated separately on the calendar.