Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Tournament | Location | Purse( $ ) | Winner | Score | 1st Prize( $ ) |
| --- | --- | --- | --- | --- | --- | --- |
| Jan 7 | MONY Senior Tournament of Champions | California | 250000.0 | George Archer (2) | 283 (-5) | 37500.0 |
| Feb 4 | Royal Caribbean Classic | Florida | 400000.0 | Lee Trevino (1) | 206 (-7) | 60000.0 |
| Feb 11 | GTE Suncoast Classic | Florida | 450000.0 | Mike Hill (1) | 207 (-9) | 67500.0 |
| Feb 18 | Aetna Challenge | Florida | 400000.0 | Lee Trevino (2) | 200 (-16) | 60000.0 |
| Mar 4 | Vintage Chrysler Invitational | California | 400000.0 | Lee Trevino (3) | 205 (-11) | 60000.0 |
| Mar 18 | Vantage at The Dominion | Texas | 300000.0 | Jim Dent (3) | 205 (-11) | 45000.0 |
| Apr 1 | The Tradition at Desert Mountain | Arizona | 800000.0 | Jack Nicklaus (1) | 206 (-10) | 120000.0 |
| Apr 15 | PGA Seniors' Championship | Florida | 450000.0 | Gary Player (15) | 281 (-7) | 75000.0 |
| Apr 29 | Murata Reunion Pro-Am | Texas | 400000.0 | Frank Beard (1) | 207 (-9) | 60000.0 |
| May 6 | Las Vegas Senior Classic | Nevada | 450000.0 | Chi Chi Rodriguez (14) | 204 (-12) | 67500.0 |
| May 13 | Southwestern Bell Classic | Oklahoma | 450000.0 | Jimmy Powell (1) | 208 (-8) | 67500.0 |
| May 20 | Doug Sanders Kingwood Celebrity Classic | Texas | 300000.0 | Lee Trevino (4) | 203 (-13) | 45000.0 |
| May 27 | Bell Atlantic Classic | Pennsylvania | 500000.0 | Dale Douglass (6) | 206 (-4) | 75000.0 |
| Jun 3 | NYNEX Commemorative | New York | 350000.0 | Lee Trevino (5) | 199 (-11) | 52500.0 |
| Jun 10 | Mazda Senior Tournament Players Championship | Michigan | 1000000.0 | Jack Nicklaus (2) | 261 (-27) | 150000.0 |
| Jun 17 | MONY Syracuse Senior Classic | New York | 400000.0 | Jim Dent (4) | 199 (-17) | 60000.0 |
| Jun 24 | Digital Seniors Classic | Massachusetts | 350000.0 | Bob Charles (14) | 203 (-13) | 52500.0 |
| Jul 1 | U.S. Senior Open | New Jersey | 450000.0 | Lee Trevino (6) | 275 (-13) | 90000.0 |
| Jul 8 | Northville Long Island Classic | New York | 450000.0 | George Archer (3) | 208 (-8) | 67500.0 |
| Jul 15 | Kroger Senior Classic | Ohio | 600000.0 | Jim Dent (5) | 133 (-9) | 90000.0 |
| Jul 22 | Ameritech Senior Open | Michigan | 500000.0 | Chi Chi Rodriguez (15) | 203 (-13) | 75000.0 |
| Jul 29 | Newport Cup | Rhode Island | 300000.0 | Al Kelley (1) | 134 (-10) | 45000.0 |
| Aug 5 | PaineWebber Invitational | North Carolina | 450000.0 | Bruce Crampton (16) | 205 (-11) | 67500.0 |
| Aug 12 | Sunwest Bank Charley Pride Senior Golf Classic | New Mexico | 350000.0 | Chi Chi Rodriguez (16) | 205 (-11) | 52500.0 |
| Aug 19 | Showdown Classic | Utah | 350000.0 | Rives McBee (2) | 202 (-14) | 52500.0 |
| Aug 26 | GTE Northwest Classic | Washington | 350000.0 | George Archer (4) | 205 (-11) | 52500.0 |
| Sep 2 | GTE North Classic | Indiana | 450000.0 | Mike Hill (2) | 201 (-15) | 67500.0 |
| Sep 9 | Vantage Bank One Classic | Kentucky | 300000.0 | Rives McBee (3) | 201 (-15) | 45000.0 |
| Sep 16 | Greater Grand Rapids Open | Michigan | 300000.0 | Don Massengale (1) | 134 (-8) | 45000.0 |
| Sep 23 | Crestar Classic | Virginia | 350000.0 | Jim Dent (6) | 202 (-14) | 52500.0 |
| Sep 30 | Fairfield Barnett Space Coast Classic | Florida | 300000.0 | Mike Hill (3) | 200 (-16) | 45000.0 |
| Oct 7 | Vantage Championship | North Carolina | 1500000.0 | Charles Coody (2) | 202 (-14) | 202500.0 |
| Oct 14 | Gatlin Brothers Southwest Senior Classic | Texas | 300000.0 | Bruce Crampton (17) | 204 (-12) | 45000.0 |
| Oct 21 | Transamerica Senior Golf Championship | California | 500000.0 | Lee Trevino (7) | 205 (-11) | 75000.0 |
| Oct 28 | Rancho Murieta Senior Gold Rush | California | 400000.0 | George Archer (5) | 204 (-12) | 60000.0 |
| Nov 4 | Security Pacific Senior Classic | California | 500000.0 | Mike Hill (4) | 201 (-12) | 75000.0 |
| Dec 9 | GTE Kaanapali Classic | Hawaii | 450000.0 | Bob Charles (15) | 206 (-4) | 67500.0 |
Question:
When was the tournament in Washington held?
Answer:
Aug 26