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| Women's pro tennis |
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Defunct tiers and events
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TheWTA Tier IV tournaments wereWomen's Tennis Association fourth-level tournaments held from 1990 until the end of the 2008 season. The line-up of events varied over the years, with tournaments being promoted, demoted or cancelled. Some of the tournaments became Tier V events between 1990 and 1992, and later from 2001 to 2005, before being integrated back into Tier IV.[1]
From2009 WTA Tour, WTA changed the tournament categories, so that most of the Tier III and Tier IV tournaments from 2008 were in one category,WTA International tournaments.
| Tournament | Also known as | City(s) | Country | Court surface | Tier IV in | Years |
|---|---|---|---|---|---|---|
| Puerto Rico Open | Honda Classic | San Juan(1991–1993) Dorado(1990) | Puerto Rico, US | Hard | 1990–1993 | 4 |
| Kansas | Avon Championships of Kansas | Wichita,KS | United States | Hard | 1990 | 1 |
| Albuquerque | Virginia Slims of Albuquerque | Albuquerque,NM | United States | Hard | 1990–1991 | 2 |
| Nashville | Virginia Slims of Nashville | Nashville,TN | United States | Hard | 1990–1991 | 2 |
| Spanish Open | International Championships of Spain | Barcelona | Spain | Clay | 1990 | 1 |
| Birmingham Classic | Aegon Classic | Birmingham | United Kingdom | Grass | 1990–1992 | 3 |
| Brisbane International | Danone Hardcourt Championships | Brisbane | Australia | Hard | 1990–1992 | 3 |
| Swiss Open | European Open | Geneva(1990–1991) Lucerne(1992) | Switzerland | Clay | 1990–1992 | 3 |
| Indianapolis | Virginia Slims of Indianapolis | Indianapolis | United States | Hard | 1990–1992 | 3 |
| Memphis | Virginia Slims of Oklahoma | Memphis, TN | United States | Hard | 1990–1992 | 3 |
| Paris | Clarins Open | Paris | France | Clay | 1990–1992 | 3 |
| Strasbourg | Internationaux de Strasbourg | Strasbourg | France | Clay | 1990–1992 | 3 |
| Tokyo | Suntory Japan Open | Tokyo | Japan | Hard | 1990–1992 | 3 |
| Bayonne | Whirlpool Open | Bayonne | France | Carpet (i) | 1991–1992 | 2 |
| Kuala Lumpur | Malaysian Women's Open | Kuala Lumpur | Malaysia | Hard (i) | 1992–1993 | 2 |
| Taipei | P&G Taiwan Women's Open | Taipei | Taiwan | Hard | 1992–1994 | 3 |