| 1990 WTA Tier I Series | |
| Duration: | February 12 – August 5 |
| Edition: | 1st |
| Tournaments: | 6 |
| Most Tournament Titles: | Monica Seles (3) |
| Most Tournament Finals: | Monica Seles (3) |
| Previous: | 1989 |
| Next: | 1991 |
See main article: article and 1990 WTA Tour.
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 |