| Nation | Tournament | Champion | Runner-up | Result |  Playoff format  | 
|---|
   Albania  |  2017–18 Albanian Basketball League  |  Tirana  |  Teuta  | 3–2 | Best-of-5 series | 
|  2017–18 Albanian Basketball Cup  |  Tirana  |  Teuta  | 76–62 | Single game final | 
   Algeria  |  2017–18 Algerian Basketball Championship  |  GS Pétroliers  | NB Staouéli | 2–0 | Best-of-3 series | 
|  2017–18 Algerian Basketball Cup  |  GS Pétroliers  |  US Sétif  | 75–56 | Single game final | 
   Angola  |  2017–18 BAI Basket  |  Primeiro de Agosto  |  Petro de Luanda  | 4–1 | Best-of-7 series | 
|  2017–18 Angola Basketball Cup  |  Primeiro de Agosto  |  Benfica do Libolo  | 101–77 | Single game final | 
   Armenia  |  2017–18 Armenia Basketball League A  |  Artsakh  |  Artik  | 198–164 | Two-legged tie | 
   Argentina  |  2017–18 La Liga season  |  San Lorenzo  |  San Martín de Corrientes  | 4–2 | Best-of-7 series | 
   Austria  |  2017–18 Österreichische Basketball Bundesliga season  |  ece Bulls Kapfenberg  |  Swans Gmunden  | 4–2 | Best-of-7 series | 
|  2017–18 Austrian Basketball Cup  |  ece Bulls Kapfenberg  |  Swans Gmunden  | 82–79 | Single game final | 
   Australia  [a]  |  2017–18 NBL season  |  Melbourne United  |  Adelaide 36ers  | 3–2 | Best-of-5 series | 
   Azerbaijan  |  2017–18 Azerbaijan Basketball League  |  NTD  |  Aztop  | 2–0 | Best-of-3 series | 
   Bahrain  |  2017–18 Bahraini Premier League  |  Al-Manama  |  Al-Ahli  | 3–1 | Best-of-5 series | 
   Belarus  |  2017–18 Belarusian Premier League  |  Tsmoki-Minsk  | Borisfen | 3–0 | Best-of-5 series | 
   Belgium  |  2017–18 Belgian Basketball League  |  Oostende  |  Telenet Giants Antwerp  | 3–0 | Best-of-5 series | 
|  2017–18 Belgian Basketball Cup  |  Oostende  |  Belfius Mons-Hainaut  | 84–80 | Single game final | 
   Bosnia and Herzegovina  |  2017–18 Basketball Championship of Bosnia and Herzegovina  |  Zrinjski  |  Igokea  | 3–1 | Best-of-5 series | 
|  2017–18 Basketball Cup of Bosnia and Herzegovina  |  Igokea  |  Kakanj  | 94–76 | Single game final | 
   Brazil  |  2017–18 NBB season  |  Paulistano  |  Mogi das Cruzes  | 3–1 | Best-of-5 series | 
   Bulgaria  |  2017–18 National Basketball League  |  Levski Lukoil  |  Balkan  | 3–1 | Best-of-5 series | 
|  2017–18 Bulgarian Basketball Cup  |  Rilski Sportist  |  Levski Lukoil  | 89–80 | Single-game final | 
   Canada  |  2017–18 NBL Canada season  |  London Lightning  |  Halifax Hurricanes  | 4–3 | Best-of-7 series | 
   Chile  |  2017-18 LNB Chile season  |  Las Animas  |  Los Leones  | 4–1 | Best-of-7 series | 
   China  |  2017–18 CBA season  |  Liaoning Flying Leopards  |  Zhejiang Lions  | 4–0 | Best-of-7 series | 
   Croatia  |  2017–18 A-1 League  |  Cedevita  |  Cibona  | 3–1 | Best-of-5 series | 
|  2017–18 Krešimir Ćosić Cup  |  Cedevita  |  Cibona  | 86–74 | Single game final | 
   Cyprus  |  2017–18 Cyprus Basketball Division A  |  Petrolina AEK  |  Keravnos  | 3–0 | Best-of-5 series | 
|  2017–18 Cypriot Basketball Cup  |  Petrolina AEK  |  ETHA  | 86–80 | Single game final | 
   Czech Republic  |  2017–18 NBL (Czech Republic)  |  ČEZ Nymburk  |  Opava  | 228–163 | Two-legged tie | 
|  2017–18 Czech Republic Basketball Cup  |  ČEZ Nymburk  |  Pardubice  | 86–65 | Single game final | 
   Denmark  |  2017–18 Basketligaen  |  Bakken Bears  |  Horsens  | 4–0 | Best-of-7 series | 
|  2017–18 Danish Basketball Cup  |  Bakken Bears  |  Copenhagen Wolfpack  | 100–67 | Single game final | 
   Egypt  |  2017–18 Egyptian Super League  |  Sporting  |  Smouha  | – | Round Robin [1]  | 
|  2017–18 Egyptian Basketball Cup  |  Al Ahly  |  Sporting  | 72–69 | Single-game final | 
   Estonia  |  2017–18 KML season  |  Kalev/Cramo  |  University of Tartu  | 4–0 | Best-of-7 series | 
   Finland  |  2017–18 Korisliiga season  |  Kauhajoki Karhu  |  Salon Vilpas  | 4–2 | Best-of-7 series | 
   France  [b]  |  2017–18 Pro A season  |  Le Mans  |  Monaco  | 3–2 | Best-of-5 series | 
|  2017–18 French Basketball Cup  |  Strasbourg IG  |  Boulazac  | 82–62 | Single-game final | 
|  2018 Leaders Cup  |  Monaco  |  Le Mans Sarthe  | 83–78 | Single-game final | 
   Georgia  |  2017–18 Georgian Superliga  |  Dinamo Tbilisi  |  Kutaisi  | 3–2 | Best-of-5 series | 
   Germany  |  2017–18 Basketball Bundesliga  |  Bayern Munich  |  Alba Berlin  | 3–2 | Best-of-5 series | 
|  2018 BBL-Pokal  |  Bayern Munich  |  Alba Berlin  | 80–75 | Single-game final | 
   Great Britain  |  2017–18 BBL  |  Leicester Riders  |  London Lions  | 81–60 | Single-game final | 
|  2017–18 BBL Cup  |  Cheshire Phoenix  |  Worcester Wolves  | 99–88 | Single-game final | 
|  2017–18 BBL Trophy  |  Leicester Riders  |  DBL Sharks Sheffield  | 90–85 | Single-game final | 
   Greece  |  2017–18 Greek Basket League  |  Panathinaikos  |  Olympiacos  | 3–2 | Best-of-5 series | 
|  2017–18 Greek Basketball Cup  |  AEK Athens  |  Olympiacos  | 88–83 | Single-game final | 
   Hungary  |  2017–18 Nemzeti Bajnokság I/A  |  Szolnoki Olaj  |  Falco Vulcano  | 3–1 | Best-of-5 series | 
|  2018 Magyar Kupa  |  Szolnoki Olaj  |  Falco Vulcano  | 82–67 | Single-game final | 
   Iceland  |  2017–18 Úrvalsdeild karla  |  KR  |  Tindastóll  | 3–1 | Best-of-5 series | 
|  2017–18 Icelandic Basketball Cup  |  Tindastóll  |  KR  | 82–67 | Single-game final | 
   Indonesia  |  2018 Indonesian Basketball League  |  Satria Muda Pertamina Jakarta  |  Pelita Jaya Energi Mega Persada  | 2–1 | Best-of-3 series | 
   Iran  |  2017–18 Iranian Basketball Super League  | Shahrdari Tabriz |  Mahram Tehran  | 3–2 | Best-of-5 series | 
   Iraq  |  2017–18 Iraqi Basketball Premier League  |  Al-Naft  |  Al-Shorta  | 3–1 | Best-of-5 series | 
   Ireland  [c]  |  2017–18 Irish Super League  |  Tralee Warriors  |  Templeogue  | 73–61 | Single-game final | 
|  2017–18 Irish National Cup  |  Templeogue  |  UCD Marian  | 68–62 | Single-game final | 
   Israel  |  2017–18 Israeli Basketball Premier League  |  Maccabi Tel Aviv  |  Hapoel Holon  | 95–75 | Single-game final | 
|  2017–18 Israeli Basketball State Cup  |  Hapoel Holon  |  Maccabi Tel Aviv  | 86–84 | Single-game final | 
   Italy  |  2017–18 LBA season  |  EA7 Emporio Armani Milano  |  Dolomiti Energia Trento  | 4–2 | Best-of-7 series | 
|  2018 Italian Basketball Cup  |  Fiat Torino  |  Germani Basket Brescia  | 69–67 | Single-game final | 
   Japan  |  2017–18 B.League season  |  Alvark Tokyo  |  Chiba Jets  | 85–60 | Single-game final | 
   Jordan  |  2017–18 Jordanian Premier League  | Al Ahli |  Al Riyadi  |  |  | 
   Kazakhstan  |  2017–18 Kazakhstan Basketball Championship  |  Astana  |  Barsy Atyrau  | 3–0 | Best-of-5 series | 
|  2017–18 Kazakhstan Basketball Cup  |  Astana  |  Barsy Atyrau  | 72–61 | Single-game final | 
   Kosovo  |  2017–18 Kosovo Basketball Superleague  |  Bashkimi  |  Sigal Prishtina  | 2–1 | Best-of-3 series | 
|  2017–18 Kosovo Basketball Cup  |  Sigal Prishtina  |  Bashkimi  | 77–74 | Single-game final | 
   Latvia  |  2017–18 Latvian Basketball League  |  Ventspils  |  VEF Rīga  | 4–2 | Best-of-7 series | 
   Lebanon  |  2017–18 Lebanese Basketball League  |  Homenetmen  |  Al Riyadi  | 4–3 | Best-of-7 series | 
   Libya  |  2017–18 LBL  |  Al Nasr Benghazi  |  Al Ahly Tripoli  |  |  | 
|  2017–18 Libyan Basketball Cup  |  Al Ahly Tripoli  |  Al Nasr Benghazi  | 88–74 | Single-game final | 
   Lithuania  |  2017–18 LKL season  |  Žalgiris  |  Lietuvos rytas  | 4–1 | Best-of-7 series | 
|  2018 King Mindaugas Cup  |  Žalgiris  |  Lietuvos rytas  | 81–62 | Single-game final | 
   Luxembourg  |  2017–18 Total League season  |  Amicale  |  Etzella  | 3–0 | Best-of-5 series | 
  Macedonia  |  2017–18 Macedonian First League  |  Rabotnički  |  MZT Skopje Aerodrom  | 3–0 | Best-of-5 series | 
|  2017–18 Macedonian Basketball Cup  |  MZT Skopje Aerodrom  |  Rabotnički  | 76–67 | Single-game final | 
   Malta  |  2017–18 Division 1  | Hibernians | Athleta | 3–1 | Best-of-5 series | 
   Mexico  |  2017–18 LNBP season  |  Soles de Mexicali  |  Capitanes de la Ciudad de México  | 4–1 | Best-of-7 series | 
   Moldova  |  2017–18 Moldovan National Division  |  Basco  |  Gama-Sind  | 3–0 | Best-of-5 series | 
   Montenegro  |  2017–18 Prva A liga  |  Mornar  |  Budućnost VOLI  | 3–1 | Best-of-5 series | 
|  2017–18 Montenegrin Basketball Cup  |  Budućnost VOLI  |  Mornar  | 87–83 | Single-game final | 
   Morocco  |  2017–18 Nationale 1  |  AS Salé  |  Wydad AC  | 77–59 | Single-game final | 
|  2017–18 Moroccan Throne Cup  |  AS Salé  |  Maghreb de Fes  | 87–59 | Single-game final | 
   Netherlands  |  2017–18 Dutch Basketball League  |  Donar  |  ZZ Leiden  | 4–0 | Best-of-7 series | 
|  2017–18 NBB Cup  |  Donar  |  ZZ Leiden  | 87–71 | Single-game final | 
   New Zealand  |  2018 New Zealand NBL season  |  Southland Sharks  |  Wellington Saints  | 98–96 | Single-game final | 
   Norway  |  2017–18 BLNO season  |  Kongsberg Miners  |  Asker Aliens  | 2–1 | Best-of-3 series | 
   Panama  |  2017–18 Panamanian LPB  |  Universitarios  |  Correcaminos de Colón  | 73–64 | Single-game final | 
   Paraguay  |  2017–18 Metropolitan Basketball League  |  Olimpia  |  Deportivo San José  | 3–1 | Best-of-5 series | 
   Philippines  |  2017–18 PBA Philippine Cup  |  San Miguel Beermen  |  Magnolia Hotshots  | 4–1 | Best-of-7 series | 
|  2018 PBA Commissioner's Cup  |  Barangay Ginebra San Miguel  |  San Miguel Beermen  | 4–2 | 
|  2018 PBA Governors' Cup  |  Magnolia Hotshots  |  Alaska Aces  | 4–2 | 
   Puerto Rico  |  2018 BSN season  |  Capitanes de Arecibo  |  Vaqueros de Bayamon  | 4–2 | Best-of-7 series | 
   Poland  |  2017–18 PLK season  |  Anwil Włocławek  |  Stal Ostrów Wielkopolski  | 4–2 | Best-of-7 series | 
|  2018 Polish Basketball Cup  |  Polski Cukier Toruń  |  Stelmet Enea Zielona Góra  | 88–80 | Single-game final | 
   Portugal  |  2017–18 LPB season  |  Oliveirense  |  Porto  | 3–0 | Best-of-5 series | 
|  2017–18 Portuguese Basketball Cup  |  Illiabum  |  Benfica  | 91–83 | Single-game final | 
   Qatar  |  2017–18 Qatari Basketball League  |  Al Arabi  |  Al Wakrah  | 61–59 | Single-game final | 
   Romania  |  2017–18 Liga Națională  |  Oradea  |  Steaua CSM Eximbank  | 3–1 | Best-of-5 series | 
|  2017–18 Romanian Basketball Cup  |  U-BT Cluj-Napoca  |  Oradea  | 64–61 | Single-game final | 
   Russia  [d]  |  2017–18 VTB United League  |  CSKA Moscow  |  Khimki  | 95–84 | Single-game final | 
|  2017–18 Russian Basketball Cup  |  Lokomotiv Kuban  |  Nizhny Novgorod  | 85–64 | Single-game final | 
   Saudi Arabia  |  2017–18 Saudi Premier League  |  Ohud Medina  |  Al Fateh  | 72–69 | Single-game final | 
   Serbia  |  2017–18 Basketball League of Serbia  |  Crvena zvezda mts  |  FMP  | 3–0 | Best-of-5 series | 
|  2017–18 Radivoj Korać Cup  |  Partizan NIS  |  Crvena zvezda mts  | 81–75 | Single-game final | 
   Slovakia  |  2017–18 Slovak Basketball League  |  Levickí Patrioti  |  Košice  | 4–1 | Best-of-7 series | 
|  2017–18 Slovak Basketball Cup  |  Košice  |  Inter Bratislava  | 89–81 | Single-game final | 
   Slovenia  |  2017–18 Slovenian Basketball League  |  Petrol Olimpija  |  Krka  | 3–2 | Best-of-5 series | 
|  2017–18 Slovenian Basketball Cup  |  Primorska  |  Šenčur  | 83–63 | Single-game final | 
   South Korea  |  2017–18 KBL season  |  Seoul SK Knights  |  Wonju DB Promy  | 4–2 | Best-of-7 series | 
   Spain  [e]  |  2017–18 ACB season  |  Real Madrid  |  Kirolbet Baskonia  | 3–1 | Best-of-5 series | 
|  2018 Copa del Rey de Baloncesto  |  FC Barcelona Lassa  |  Real Madrid  | 92–90 | Single-game final | 
   Sweden  |  2017–18 Basketligan season  |  Norrköping Dolphins  |  Luleå  | 4–3 | Best-of-7 series | 
   Switzerland  |  2017–18 SBL  |  Fribourg Olympic  |  Lions de Genève  | 4–1 | Best-of-7 series | 
|  2017–18 Swiss Basketball Cup  |  Fribourg Olympic  |  Lugano Tigers  | 92–72 | Single-game final | 
|  2017–18 SBL Cup  |  Fribourg Olympic  |  Lugano Tigers  | 93–86 | Single-game final | 
   Syria  |  2017–18 Syrian Basketball League  |  Al-Jaish SC  |  Al-Karamah  | 3–0 | Best-of-5 series | 
   Tunisia  |  2017–18 Division I  |  Étoile Sportive de Radès  |  Union Sportive Monastir  | 2-1 | Best-of-3 series | 
|  2017–18 Tunisian Basketball Cup  |  Étoile Sportive de Radès  |  Étoile Sportive du Sahel  | 79-65 | Single-game final | 
   Turkey  |  2017–18 Basketbol Süper Ligi  |  Fenerbahçe Doğuş  |  Tofaş  | 4–1 | Best-of-7 series | 
|  2018 Turkish Basketball Cup  |  Anadolu Efes  |  Tofaş  | 78–61 | Single-game final | 
   Ukraine  |  2017–18 SuperLeague  |  Cherkaski Mavpy  |  Dnipro  | 3–0 | Best-of-5 series | 
|  2017–18 Ukrainian Basketball Cup  |  Dnipro  |  Khimik  | 78–71 | Single-game final | 
   United Arab Emirates  |  2017–18 UAE National Basketball League  |  Shabab Al Ahli-Dubai  |  Al-Nasr  | 2–0 | Best-of-3 series | 
   United States  [f]  |  2017–18 NBA season  |  Golden State Warriors  |  Cleveland Cavaliers  | 4–0 | Best-of-7 series | 
|  2018 NBA playoffs  |  Golden State Warriors  |  Cleveland Cavaliers  | 4–0 | Best-of-7 series | 
|  2018 NBA Summer League  |  Portland Trail Blazers  |  Los Angeles Lakers  | 91-73 | Single-game final | 
|  2017–18 NBA G League season  |  Austin Spurs  |  Raptors 905  | 2-0 | Best-of-3 series | 
|  2018 NBA All-Star Game  | Team LeBron | Team Curry | 148-145 | Single-game final | 
|  NBA Africa Game 2018  | Team World | Team Africa | 96-92 | Single-game final | 
   Uruguay  |  2017–18 LUB season  |  Malvín  |  Aguada  | 4–3 | Best-of-7 series | 
   Venezuela  |  2018 LPB season  |  Guaros de Lara  |  Trotamundos  | 4–3 | Best-of-7 series | 
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