Open, Open Floridablanca, Maharashtra Open, German Open (WTA), Swiss Open Gstaad, Nottingham Open, Chile Open, Open source, Reykjavík Open, Montreux Open, Open Business, Makarska Open, Czech Open (Prostějov), ATP Mumbai Open, Iași Open, Bytom Open, Poznań Open, US Open Series, Rosmalen Open, Miami Open, Open Bogotá, Polish Open, Thailand Open (WTA), Braunschweig Open, Korea Open Tennis Championships, Open government, Open Barranquilla, Estoril Open, Madrid Open 2009, Halle Open, Barcelona Open, Open CASCADE Technology, Hungarian Open (ATP), Moselle Open, Tali Open, Euroformula Open, Danish Open, Cincinnati Open, Open Fiber, Auckland Open, Open science

Madrid Open 2012, Automobile open source, Mérida Open, Open Medellin, Madrid Open 2010, Japan Women's Open Tennis, Madrid Open 2011, Essen Open 1995, Wuhan Open 2014, US Open (tennis), Open Cali I, Ostrava Open WTA, Open d'Orleans, Warsaw Open (1998-2008), German Open 2014, Open Nantes ITF, Canadian Open, Miami Open 2015, Dutch Open, Open access, Henderson Tennis Open, Madrid Open, The Hague Open, German Open 2015, Bangalore Open, Serbia Challenger Open, Qatar Ladies Open, Altenkirchen Ladies Open, Córdoba Open, Victorian Open, NYJTL Bronx Open, I. ČLTK Prague Open, Vienna Open, Colombia Open (1994-2010), Australian Open, Prague Open II 2020, Szczecin Open, Open University, UNICEF Open 2010, Prague Open II, Miami Open 2001, Halle Open 1993, Hamburg European Open, Tata Open 2002, Topshelf Open 2013, Miami Open 2003, Washington Open, Austrian Open Kitzbühel, Ecuador Open, Ladies Open Lugano

Open, Open Floridablanca, Maharashtra Open, German Open (WTA), Swiss Open Gstaad, Nottingham Open, Chile Open, Open source, Reykjavík Open, Montreux Open, Open Business, Makarska Open, Czech Open (Prostějov), ATP Mumbai Open, Iași Open, Bytom Open, Poznań Open, US Open Series, Rosmalen Open, Miami Open, Open Bogotá, Polish Open, Thailand Open (WTA), Braunschweig Open, Korea Open Tennis Championships, Open government, Open Barranquilla, Estoril Open, Madrid Open 2009, Halle Open, Barcelona Open, Open CASCADE Technology, Hungarian Open (ATP), Moselle Open, Tali Open, Euroformula Open, Danish Open, Cincinnati Open, Open Fiber, Auckland Open, Open science, Madrid Open 2012, Automobile open source, Mérida Open, Open Medellin, Madrid Open 2010, Japan Women's Open Tennis, Madrid Open 2011, Essen Open 1995, Wuhan Open 2014, US Open (tennis), Open Cali I, Ostrava Open WTA, Open d'Orleans, Warsaw Open (1998-2008), German Open 2014, Open Nantes ITF, Canadian Open, Miami Open 2015, Dutch Open, Open access, Henderson Tennis Open, Madrid Open, The Hague Open, German Open 2015, Bangalore Open, Serbia Challenger Open, Qatar Ladies Open, Altenkirchen Ladies Open, Córdoba Open, Victorian Open, NYJTL Bronx Open, I. ČLTK Prague Open, Vienna Open, Colombia Open (1994-2010), Australian Open, Prague Open II 2020, Szczecin Open, Open University, UNICEF Open 2010, Prague Open II, Miami Open 2001, Halle Open 1993, Hamburg European Open, Tata Open 2002, Topshelf Open 2013, Miami Open 2003, Washington Open, Austrian Open Kitzbühel, Ecuador Open, Ladies Open Lugano, Miami Open 2007, Open Pereira, Vienna Open 2014, Vienna Open 2015, Vienna Open 2017, Open de Limoges, Halle Open 2012, Miami Open 2008, Halle Open 2003, San Diego Open, Halle Open 1999, Canada Open 1972, Miami Open 2006, Madrid Open 2013, Halle Open 2008, Vienna Open 2016, Chennai Open 2003, Katowice Open, Sopot Open 2001, Halle Open 1998, Madrid Open 2015, Heilbronn Open, Estoril Open 2009, Miami Open 2009, Liberec Open, Genoa Open Challenger, Tata Open Maharashtra 2023, Colombia Open 2013, Tata Open 2004, WTA Mumbai Open, Halle Open 2011, Miami Open 2005, Vienna Open 2011, Madrid Open 2016, Halle Open 2015, Halle Open 1997, Miami Open 2004, Halle Open 2002, Vienna Open 2012, Romanian Open 2009, Bermuda Open Challenger, Roma Open II, Colombia Open 2015, Madrid Open 2014, Halle Open 2019, Romanian Open 2008, Halle Open 2016, Halle Open 2007, Open di Zurigo, Sopot Open 2004, Vienna Open 2013, Halle Open 2017, Halle Open 1996, Halle Open 2000, Open Source Intelligence, St. Petersburg Open 1991, Halle Open 2004, Open Barranquilla 2012, Halle Open 1995, Open 13