The WTA Tier III tournaments were Women's Tennis Association tennis third-level tournaments held from 1990 until the end of the 2008 season. The line-up of events varied over the years due to tournaments being promoted, demoted or cancelled.^[1]

From 2009, most Tier III and Tier IV tournaments from previous seasons became WTA International Tournaments owing to a category change.^[2] The main reason for the changes was to ease the pressure on players in terms of the number of tournaments that they were required to play.^[3]

Events

Tournament	Complete sponsored name	City(s)	Country A	Court surface	Tier III from	Years	Current/ Defunct
VS of Houston	Virginia Slims of Houston	Houston	United States	Clay	1990	1
Tampa	Eckerd Open	Tampa, Florida	United States	Clay	1990	1
Newport	Virginia Slims of Newport	Newport	United States	Grass	1990	1
San Diego	Toshiba Classic	San Diego	United States	Hard	1990–91	2
San Antonio	New Haven Open at Yale	San Antonio	United States	Hard	1990–92	3
Sydney	New South Wales Open	Sydney	Australia	Hard	1990–92	3	Current
Leipzig	Sparkassen Cup	Leipzig	Germany	Carpet (i)	1990–92	3
Barcelona	Barcelona Ladies Open	Barcelona	Spain	Clay	1991–92	2	Current
Lucerne	European Open	Lucerne	Switzerland	Clay	1992–94	3
Osaka	Asian Open	Osaka	Japan	Carpet (i)	1992–94	3
Budapest	GDF Suez Grand Prix	Budapest	Hungary	Carpet (i) (1993) Clay (2007–08)	1993 2007–08	3	Current
Kitzbühel	WTA Austrian Open	Kitzbühel	Austria	Clay	1993	1
Schenectady	OTB International Open	Schenectady	United States	Hard	1993–94	2
Brisbane	Danone Hardcourt Championships	Brisbane	Australia	Hard	1993–94	2
Linz	Generali Ladies Linz	Linz	Austria	Carpet (i)	1993–97	5	Current
Oklahoma City Memphis	Cellular South Cup	Oklahoma City (1993–2001) Memphis (2002–08)	United States	Hard (i)	1993–2008	16
Strasbourg	Internationaux de Strasbourg	Strasbourg	France	Clay	1993–2008	16	Current
Tokyo Outdoor	Rakuten Japan Open Tennis Championships	Tokyo	Japan	Hard	1993–2008	16
Birmingham	Aegon Classic	Birmingham	United Kingdom	Grass	1993–2008	16	Current
Quebec City	Challenge Bell	Quebec City	Canada	Carpet (i)	1993–2008	16	Current
Moscow	Kremlin Cup	Moscow	Russia	Carpet (i)	1994–96	3	Current
San Juan	Puerto Rico Open	San Juan	Puerto Rico, USA	Hard	1995	1
Zagreb Bol	Croatian Bol Ladies Open	Zagreb (1995) Bol (2000–03)	Croatia	Clay	1995 2000–2003	5
Jakarta	Danamon Open	Jakarta	Indonesia	Hard	1995–96	2
Warsaw	Warsaw Open	Warsaw	Poland	Clay	1995–98 2002–10	5
Luxembourg City	BGL Luxembourg Open	Luxembourg City	Luxembourg	Carpet (i) (1996–2000) Hard (i) (2001–04, 2008)	1996–2004 2008	10	Current
's-Hertogenbosch	Ordina Open	's-Hertogenbosch	Netherlands	Grass	1996–2008	13	Current
Madrid	Madrid Open	Madrid	Spain	Clay	1997–2003	7
Gold Coast	Brisbane International	Gold Coast	Australia	Hard	1997–2008	12
Prague	ECM Prague Open	Prague	Czech Republic	Clay	1998	1
VS of Boston	Virginia Slims of Boston	Boston, Massachusetts	United States	Hard	1998	1
Cairo	Dreamland Egypt Classic	Cairo	Egypt	Clay	1999	1
Sopot	Orange Warsaw Open	Sopot	Poland	Clay	1999–2004	6
Kuala Lumpur Bali	Wismilak International (1999–2006) Commonwealth Bank Tennis Classic (2007–08)	Kuala Lumpur (1999–2000) Bali (2001–08)	Malaysia  Indonesia	Hard	1999–2008	10
Vienna	WTA Austrian Open	Klagenfurt (2000) Vienna (2001–04)	Austria	Clay	2000–04	5
Canberra	Canberra International	Canberra	Australia	Hard	2001	1
Doha	Qatar Ladies Open	Doha	Qatar	Hard	2001–03	3
Bogotá	Copa Sony Ericsson Colsanitas	Bogotá	Colombia	Clay	2001–08	8	Current
Acapulco	Abierto Mexicano Telcel HSBC	Acapulco	Mexico	Clay	2001–08	8	Current
Hasselt	Gaz de France Stars	Hasselt	Belgium	Hard (i)	2004–06	3
Cincinnati	Western & Southern Open	Cincinnati	United States	Hard	2004–2008	5	Current
Guangzhou	Guangzhou International Women's Open	Guangzhou	China	Hard	2004–08	5	Current
Bangkok	PTT Bangkok Open	Bangkok	Thailand	Hard	2005–07	3
Kolkata	Sunfeast Open	Kolkata	India	Hard (i)	2005–07	3
Istanbul	İstanbul Cup	Istanbul	Turkey	Clay	2005–08	4	Current
Bangalore	Bangalore Open	Bangalore	India	Hard	2006–08	3
Bad Gastein	Gastein Ladies	Bad Gastein	Austria	Clay	2007–08	2	Current
Viña del Mar	Cachantún Cup	Viña del Mar	Chile	Clay	2008	1