Open access

Open, Open de España, US Open, Austrian Golf Open, Italia Open, Maharashtra Open, Phoenix Open, Western Open, KLM Open, The Open Championship, Eyes Open, Sony Open in Hawaii, Texas Open, Vienna Open, Sofia Open, Heaven’s Open, Malaysian Open, Canadian Open, Barcelona Open, Halle Open, Washington Open, OpenGL, Houston Open, Open d’Orléans, Tucson Open, Swedish Open, Austrian Open Kitzbühel, Hamburg European Open, Japan Open (tennis), Verrazzano Open, Nottingham Open, Busan Open, U.S. Women’s Open Championship, Ecuador Open, Lyon Open, WTA Prague Open, Los Angeles Open, The Open University, Open de France, Apache OpenOffice, Asian Open

Tampere Open, Luxembourg Open, Open Group, Boise Open, Generali Open Kitzbühel 2021, Hungarian Open, Croatia Open, US Open 2008 (tennis), Open Society Foundations, Women’s British Open, Charleston Open, Qatar Open, US Open 1992 (tennis), US Open 1990 (tennis), U.S. Open Championship, US Open 1995 (tennis), US Open 2000 (tennis), US Open 2003 (tennis), San Diego Open, Czech Open (tennis), Nashville Golf Open, US Open 1994 (tennis), US Open 1988 (tennis), US Open 1989 (tennis), US Open 1993 (tennis), US Open 1999 (tennis), US Open 2007 (tennis), US Open 1997 (tennis), US Open 1987 (tennis), US Open 2004 (tennis), US Open 1998 (tennis), US Open 1991 (tennis), Wacken Open Air, US Open 2022 (tennis), US Open 2002 (tennis), Andalucía Open 2021, Shenzhen Open, US Open 2001 (tennis), Polish Open (tennis), JC Ferrero Challenger Open, Open Harmonie mutuelle, Tilia Slovenia Open, OpenDocument, Córdoba Open 2022, Buick Open, Open de Madrid Golf Masters, Qatar Ladies Open, Rotterdam Open, Swiss Open (tennis), Open du Pays d’Aix

Open, Open de España, US Open, Austrian Golf Open, Italia Open, Maharashtra Open, Phoenix Open, Western Open, KLM Open, The Open Championship, Eyes Open, Sony Open in Hawaii, Texas Open, Vienna Open, Sofia Open, Heaven’s Open, Malaysian Open, Canadian Open, Barcelona Open, Halle Open, Washington Open, OpenGL, Houston Open, Open d’Orléans, Tucson Open, Swedish Open, Austrian Open Kitzbühel, Hamburg European Open, Japan Open (tennis), Verrazzano Open, Nottingham Open, Busan Open, U.S. Women’s Open Championship, Ecuador Open, Lyon Open, WTA Prague Open, Los Angeles Open, The Open University, Open de France, Apache OpenOffice, Asian Open, Tampere Open, Luxembourg Open, Open Group, Boise Open, Generali Open Kitzbühel 2021, Hungarian Open, Croatia Open, US Open 2008 (tennis), Open Society Foundations, Women’s British Open, Charleston Open, Qatar Open, US Open 1992 (tennis), US Open 1990 (tennis), U.S. Open Championship, US Open 1995 (tennis), US Open 2000 (tennis), US Open 2003 (tennis), San Diego Open, Czech Open (tennis), Nashville Golf Open, US Open 1994 (tennis), US Open 1988 (tennis), US Open 1989 (tennis), US Open 1993 (tennis), US Open 1999 (tennis), US Open 2007 (tennis), US Open 1997 (tennis), US Open 1987 (tennis), US Open 2004 (tennis), US Open 1998 (tennis), US Open 1991 (tennis), Wacken Open Air, US Open 2022 (tennis), US Open 2002 (tennis), Andalucía Open 2021, Shenzhen Open, US Open 2001 (tennis), Polish Open (tennis), JC Ferrero Challenger Open, Open Harmonie mutuelle, Tilia Slovenia Open, OpenDocument, Córdoba Open 2022, Buick Open, Open de Madrid Golf Masters, Qatar Ladies Open, Rotterdam Open, Swiss Open (tennis), Open du Pays d’Aix, Swiss Open Gstaad 2021, Swiss Open Gstaad 2022, Taiwan Open, Madrid Open (tennis), Citi Open 2017, Open Vlaamse Liberalen en Democraten, Connecticut Open, Atlanta Open, Erste Bank Open 2017, Pan Pacific Open, Reno–Tahoe Open, Imperial Collection Russian Open, US Open 2019 (tennis), Estoril Open, Open Arms, US Open 2005 (tennis), Qatar Total Open 2018, Canadian Women’s Open, Barcelona Open Banc Sabadell 2023, South African Open, Open Castilla y León, Citi Open 2018, Mutua Madrid Open 2019, Into the Great Wide Open, San Luis Open Challenger Tour, Open 13, Korea Open, Open BNP Paribas Banque de Bretagne, Irish Open (golf), Australian Open 1977 (desember), Australian Open 1977 (januar), J&T Banka Prague Open 2019, KLM Ladies Open, Open Air Theatre, Ladies Open Lugano, Jiangxi International Women’s Tennis Open, Greater Milwaukee Open, Thailand Open 2020, Japan Women’s Open, Mutua Madrid Open 2018, Mexican Open, Halle Open 2019, The Celtic Manor Wales Open, Luxembourg Open 2017, Malaysian Open 2017, Broome County Open, OpenServer, Bucharest Open 2017, Diema Xtra Sofia Open 2018, Luxembourg Open 2018, European Open (golf), Barcelona Open Banc Sabadell 2021, Guangzhou Open 2017, Zhengzhou Open 2019, Maharashtra Open 2018, Wrocław Open, Guangzhou Open 2019, Miami Open, Australian Open 2015, Jiangxi Open 2019