The 1998 du Maurier Classic was contested from July 30 to August 2 at Essex Golf & Country Club. It was the 26th edition of the du Maurier Classic, and the 20th edition as a major championship on the LPGA Tour.
This event was won by Brandie Burton.
| Place | Player | Score | To par | Money (US$) |
|---|---|---|---|---|
| 1 |  Brandie Burton | 68-64-66-72=270 | −18 | 180,000 |
| 2 |  Annika Sörenstam | 68-66-67-70=271 | −17 | 111,711 |
| 3 | Betsy King | 64-69-70-72=275 | −13 | 81,519 |
| T4 |  Dawn Coe-Jones | 67-70-69-70=276 | −12 | 44,804 |
| Gail Graham | 70-70-68-68=276 | |||
| Michelle Estill | 69-69-66-72=276 | |||
| Meg Mallon | 65-69-67-75=276 | |||
| Deb Richard | 67-69-70-70=276 | |||
| T9 |  Hiromi Kobayashi | 68-70-66-73=277 | −11 | 26,871 |
| Sherri Steinhauer | 70-71-69-67=277 |