Proceeds from the event are donated to local children's charities. To date, over $9 million has been raised.
The tournament has had a variety of sponsors during its history. Its current title sponsor is Safeway Inc., North America's third largest supermarket chain.
Tournament names through the years:
The tournament was last held from August 22 through August 24, 2008.
| Year | Champion | Country | Score | Tournament Location | Purse | Winner's Share |
|---|---|---|---|---|---|---|
| 2008* | Cristie Kerr | 203 | Columbia Edgewater Country Club | $1,700,000 | $255,000 | |
| 2007 | Lorena Ochoa | 204 | Columbia Edgewater Country Club | $1,700,000 | $255,000 | |
| 2006 | Pat Hurst | 206 | Columbia Edgewater Country Club | $1,400,000 | $210,000 | |
| 2005 | Soo-Yun Kang | 201 | Columbia Edgewater Country Club | $1,400,000 | $210,000 | |
| 2004 | Hee-Won Han | 201 | Columbia Edgewater Country Club | $1,200,000 | $180,000 | |
| 2003 | Annika Sörenstam | 201 | Columbia Edgewater Country Club | $1,200,000 | $180,000 | |
| 2002 | Annika Sörenstam | 199 | Columbia Edgewater Country Club | $1,000,000 | $150,000 | |
| 2001 | Tournament cancelled due to events of September 11, 2001 | |||||
| 2000 | Mi Hyun Kim | 215 | Columbia Edgewater Country Club | $800,000 | $120,000 | |
| 1999 | Juli Inkster | 207 | Columbia Edgewater Country Club | $800,000 | $120,000 | |
| 1998 | Danielle Ammaccapane | 204 | Columbia Edgewater Country Club | $600,000 | $90,000 | |
| 1997 | Christa Johnson | 206 | Columbia Edgewater Country Club | $550,000 | $82,500 | |
| 1996 | Dottie Pepper | 202 | Columbia Edgewater Country Club | $550,00 | $82,500 | |
| 1995 | Alison Nicholas | 207 | Columbia Edgewater Country Club | $500,000 | $75,000 | |
| 1994 | Missie McGeorge | 207 | Columbia Edgewater Country Club | $500,000 | $75,000 | |
| 1993 | Donna Andrews | 208 | Columbia Edgewater Country Club | $450,000 | $67,500 | |
| 1992 | Nancy Lopez | 209 | Columbia Edgewater Country Club | $450,000 | $67,500 | |
| 1991 | Michelle Estil | 208 | Columbia Edgewater Country Club | $400,000 | $60,000 | |
| 1990 | Patty Sheehan | 208 | Columbia Edgewater Country Club | $350,000 | $52,500 | |
| 1989 | Muffin Spencer-Devlin | 214 | Riverside Golf & Country Club | $300,000 | $45,000 | |
| 1988 | Betsy King | 213 | Columbia Edgewater Country Club | $250,000 | $37,500 | |
| 1987 | Nancy Lopez | 210 | Columbia Edgewater Country Club | $225,000 | $33,750 | |
| 1986 | Ayako Okamoto | 207 | Columbia Edgewater Country Club | $200,000 | $30,000 | |
| 1985 | Nancy Lopez | 215 | Riverside Golf & Country Club | $175,000 | $26,250 | |
| 1984 | Amy Alcott | 212 | Riverside Golf & Country Club | $150,000 | $22,500 | |
| 1983 | JoAnne Carner | 212 | Columbia Edgewater Country Club | $150,000 | $22,5000 | |
| 1982 | Sandra Haynie & Kathy Mullen | 196 | Columbia Edgewater Country Club | $120,000 | $21,600 | |
| 1981 | Donna Caponi & Kathy Whitworth | 203 | Riverside Golf & Country Club | $120,000 | $21,000 | |
| 1980 | Donna Caponi & Kathy Whitworth | 195 | Riverside Golf & Country Club | $115,000 | $21,000 | |
| 1979 | Nancy Lopez & Jo Ann Washam | 198 | Portland Country Club | $110,000 | $20,000 | |
| 1978 | Donna Caponi & Kathy Whitworth | 203 | Columbia Edgewater Country Club | $100,000 | $20,000 | |
| 1977 | JoAnne Carner & Judy Rankin | 202 | Columbia Edgewater Country Club | $60,000 | $9,000 | |
| 1976>1 | Donna Caponi | 217 | Portland Golf Club | $45,000 | $6,400 | |
| 1975 | Jo Ann Washam | 215 | Columbia Edgewater Country Club | $40,000 | $5,700 | |
| 1974 | JoAnne Carner | 211 | Columbia Edgewater Country Club | $35,000 | $5,000 | |
| 1973 | Kathy Whitworth | 144x | Portland Golf Club | $30,000 | $4,500 | |
| 1972 | Kathy Whitworth | 212 | Portland Golf Club | $30,000 | $3,750 | |
| Year | Player | Score | Round | Course |
|---|---|---|---|---|
| 2002 | Annika Sörenstam | 62 (-10) | 2nd round | Columbia Edgewater Country Club |
| 2003 | Beth Daniel | 62 (-10) | 1st round | Columbia Edgewater Country Club |