| Details | |
|---|---|
| Duration | February 12 – August 5 |
| Edition | 1st |
| Tournaments | 6 |
| Achievements (singles) | |
| Most tournament titles |  Monica Seles (3) |
| Most tournament finals | Monica Seles (3) |
← 1989 1991 → | |
The WTA Tier I events are part of the elite tour for professional women's tennis organised by the WTA called the WTA Tour.[1][2]
| Tournament | Country | Location | Surface | Date | Prize money[3] |
|---|---|---|---|---|---|
| Virginia Slims of Chicago[4] | United States | Chicago | Carpet (i) | Feb 12 –18 | $500,000 |
| Lipton International Players Championships | United States | Key Biscayne | Hard | Mar 19 – 24 | $750,000 |
| Family Circle Cup | United States | Hilton Head Island | Clay | Apr 2 – 8 | $500,000 |
| Peugeot Italian Open | Italy | Rome | Clay | May 7 – 13 | $500,000 |
| Lufthansa Cup German Open | West Germany | West Berlin | Clay | May 14 – 20 | $500,000 |
| Canadian Open | Canada | Montreal | Hard | Jul 30 – Aug 5 | $500,000 |
| Tournament | Singles champions | Runners-up | Score | Doubles champions | Runners-up | Score |
|---|---|---|---|---|---|---|
| Chicago |  Martina Navratilova
|
 Manuela Maleeva
|
6–3, 6–2 | Martina Navratilova Anne Smith
|
 Arantxa Sánchez Vicario  Nathalie Tauziat
|
6–7(9–11), 6–4, 6–3 |
| Miami | Monica Seles
|
 Judith Wiesner
|
6–1, 6–2 |  Jana Novotná Helena Suková
|
Betsy Nagelsen Robin White
|
6–4, 6–3 |
| Hilton Head | Martina Navratilova
|
Jennifer Capriati
|
6–2, 6–4 | Martina Navratilova
|
 Mercedes Paz  Natasha Zvereva
|
6–2, 6–1 |
| Arantxa Sánchez Vicario*
| ||||||
| Rome | Monica Seles
|
Martina Navratilova
|
6–1, 6–1 |  Helen Kelesi Monica Seles
|
 Laura Garrone Laura Golarsa
|
6–3, 6–4 |
| Berlin | Monica Seles
|
 Steffi Graf
|
6–4, 6–3 |  Nicole Provis  Elna Reinach
|
Hana Mandlíková Jana Novotná
|
6–2, 6–1 |
| Montréal | Steffi Graf
|
 Katerina Maleeva
|
6–1, 6–7(6–8), 6–3 | Betsy Nagelsen Gabriela Sabatini
|
Helen Kelesi Raffaella Reggi
|
3–6, 6–2, 6–2 |