1990 LPGA Tour
The 1990 LPGA Tour was the 41st season since the LPGA Tour officially began in 1950. The season ran from January 19 to November 4. The season consisted of 34 official money events. Beth Daniel won the most tournaments, seven. She also led the money list with earnings of $863,578.
The Mazda LPGA Championship was the first tournament to offer a $1,000,000 purse and the first to have a winner's share of over $100,000. There were seven first-time winners in 1990: Jane Crafter, Cathy Gerring, Cathy Johnston, Kris Monaghan, Barb Mucha, Tina Purtzer, and Maggie Will.
The tournament results and award winners are listed below.
Tournament results
The following table shows all the official money events for the 1990 season. "Date" is the ending date of the tournament. The numbers in parentheses after the winners' names are the number of wins they had on the tour up to and including that event. Majors are shown in bold.| Date | Tournament | Location | Winner | Score | Purse | 1st prize |
| Jan 21 | The Jamaica Classic | Jamaica |  Patty Sheehan | 212 | 500,000 | 75,000 |
| Feb 4 | Oldsmobile LPGA Classic | Florida | Pat Bradley | 281 | 300,000 | 45,000 |
| Feb 18 | The Phar-Mor at Inverrary | Florida |  Jane Crafter | 209 | 400,000 | 60,000 |
| Feb 24 | Orix Hawaiian Ladies Open | Hawaii | Beth Daniel | 210 | 350,000 | 52,500 |
| Mar 4 | Women's Kemper Open | Hawaii | Beth Daniel | 283 | 500,000 | 75,000 |
| Mar 11 | Desert Inn LPGA International | Nevada | Maggie Will | 214 | 400,000 | 60,000 |
| Mar 18 | Circle K LPGA Tucson Open | Arizona | Colleen Walker | 276 | 300,000 | 45,000 |
| Mar 25 | Standard Register Turquoise Classic | Arizona | Pat Bradley | 280 | 500,000 | 75,000 |
| Apr 1 | Nabisco Dinah Shore | California | Betsy King | 283 | 600,000 | 90,000 |
| Apr 8 | Red Robin Kyocera Inamori Classic | California | Kris Monaghan | 276 | 300,000 | 45,000 |
| May 6 | Sara Lee Classic | Tennessee |  Ayako Okamoto | 210 | 425,000 | 63,750 |
| May 13 | Crestar Classic | Virginia | Dottie Mochrie | 200 | 350,000 | 52,500 |
| May 20 | Planters Pat Bradley International | North Carolina | Cindy Rarick | 25 points | 400,000 | 60,000 |
| May 27 | LPGA Corning Classic | New York | Pat Bradley | 274 | 350,000 | 52,500 |
| Jun 3 | Lady Keystone Open | Pennsylvania | Cathy Gerring | 208 | 300,000 | 45,000 |
| Jun 10 | McDonald's Championship | Delaware | Patty Sheehan | 275 | 650,000 | 97,500 |
| Jun 17 | Atlantic City Classic | New Jersey | Christa Johnson | 275 | 300,000 | 45,000 |
| Jun 24 | Rochester International | New York | Patty Sheehan | 271 | 400,000 | 60,000 |
| Jul 1 | du Maurier Ltd. Classic | Canada | Cathy Johnston | 276 | 600,000 | 90,000 |
| Jul 8 | Jamie Farr Toledo Classic | Ohio |  Tina Purtzer | 205 | 325,000 | 48,750 |
| Jul 15 | U.S. Women's Open | Georgia | Betsy King | 284 | 500,000 | 85,000 |
| Jul 22 | The Phar-Mor in Youngstown | Ohio | Beth Daniel | 207 | 400,000 | 60,000 |
| Jul 29 | Mazda LPGA Championship | Maryland | Beth Daniel | 280 | 1,000,000 | 150,000 |
| Aug 5 | Boston Five Classic | Massachusetts | Barb Mucha | 277 | 350,000 | 52,500 |
| Aug 12 | Stratton Mountain LPGA Classic | Vermont | Cathy Gerring | 281 | 450,000 | 67,500 |
| Aug 19 | JAL Big Apple Classic | New York | Betsy King | 273 | 400,000 | 60,000 |
| Aug 26 | Northgate Classic | Minnesota | Beth Daniel | 203 | 375,000 | 56,250 |
| Sep 3 | Rail Charity Golf Classic | Illinois | Beth Daniel | 203 | 300,000 | 45,000 |
| Sep 9 | Ping-Cellular One Golf Championship | Oregon | Patty Sheehan | 208 | 350,000 | 52,500 |
| Sep 16 | Safeco Classic | Washington | Patty Sheehan | 270 | 300,000 | 45,000 |
| Sep 23 | MBS LPGA Classic | California | Nancy Lopez | 281 | 325,000 | 48,750 |
| Oct 7 | Centel Classic | Florida | Beth Daniel | 271 | 1,000,000 | 150,000 |
| Oct 14 | Trophee Urban World Championship | France | Cathy Gerring | 278 | 325,000 | 100,000 |
| Nov 4 | Mazda Japan Classic | Japan | Debbie Massey | 133 ^ | 550,000 | 82,500 |
^ - weather-shortened tournament