Illinois Women's Open Winners Winners

| Year_ | Champion | Winning_Score | Low_Amateur | Low_Professional |
|---|---|---|---|---|
| 2005 | a-Annika Welander 5 | 207 (−9) | Annika Welander | Allison Finney 208 (−8) |
| 2004 | Sarah Johnston 4 | 212 (−4) | Noriko Nakazaki 217 (+1) | Sarah Johnston |
| 2003 | Nicole Jeray | 212 (−4) | Alexis Wooster 219 (+3) | Nicole Jeray |
| 2002 | Maria Long | 217 (−1) | Rebecca Halpern 222 (+6) Sarah Pesavento 222 (+6) | Maria Long |
| 2001 | a-Emily Gilley | 223 (+7) | Emily Gilley | Dagne Root 229 (+13) |
| 2000 | a-Emily Gilley | 217 (+1) | Emily Gilley | Jennifer Broggi 219 (+3) |
| 1999 | a-Kerry Postillion | 214 (−2) | Kerry Postillion | Margie Arnold 216 (E) |
| 1998 | Nicole Jeray | 211 (−5) | Kerry Postillion 215 (−1) | Nicole Jeray |
| 1997 | a-Kerry Postillion 3 | 218 (+2) playoff | Kerry Postillion | Diane Daugherty 218 (+2) |