WTA Tier IV tournaments Events Events

| Tournament | Also_currently_known_as | Citys | Country | Court_surface | Tier_IV_in | Years |
|---|---|---|---|---|---|---|
| Rome | Internazionali BNL d`Italia | Rome | Italy | Clay | 1988 | 1 |
| Zurich | Zurich Open | Zurich | Switzerland | Hard (i) | 1988 | 1 |
| Hamburg | Rexona Cup | Hamburg | Germany | Clay | 1988–1989 | 2 |
| New Jersey | United Jersey Bank Classic | Mahwah , NJ | United States | Hard | 1988–1989 | 2 |
| Newport | Virginia Slims of Newport | Newport , RI | United States | Clay | 1988–1989 | 2 |
| San Antonio | Pilot Pen Tennis | San Antonio , TX | United States | Hard | 1988–1989 | 2 |
| San Diego | San Diego Open | San Diego , CA | United States | Hard | 1988–1989 | 2 |
| Sydney | Medibank International Sydney | Sydney | Australia | Grass (1988) Hard (1989) | 1988–1989 | 2 |