NWC December op
Seattle 1989
| Date | Players | Type | Elo Average | Games | Rounds |
| Dec, 1989 | 14 | Swiss | 342 | 11 | 5 |
| Name | ELO | Points | ||
|
FM Dubisch, Ralph | 2270 | 2.0 | |
| Ivanov, Igor V | 2515 | 1.0 | ||
|
Barnes, Joel | 1.0 | ||
| McCready, Philip | 1.0 | |||
| Donaldson Akhmilovskaya, Elena | 1.0 | |||
|
Franett, Michael | 1.0 | ||
| Hanson, Roger | 1.0 | |||
|
Leon, Juan | 1.0 | ||
| Monahan, Darby | 1.0 | |||
|
Stefurak, David Leo | 1.0 | ||
|
FM Roper, David C | 0.0 | ||
|
Fleury, Matthew | 0.0 | ||
|
Arganian, David | 0.0 | ||
 |
Kleist, Frederick | 0.0 | ||
NWC December op Games
| White | Black | Result | Round | Date | Opening | View |
| Barnes, J | McCready, P | 1-0  |
? | 1989 | B06 Robatsch (modern) defence |   |
| Donaldson Akhmilovskaya, E | Ivanov, I | 0-1 |
? | 1989 | E15 Queen's Indian, 4.g3 |   |
| Dubisch, R | Donaldson Akhmilovskaya, E | 0-1 |
? | 1989 | C92 Ruy Lopez, closed, 9.h3 | |
| Dubisch, R | Roper, D | 1-0 |
? | 1989 | B06 Robatsch (modern) defence | |
| Fleury, M | McCready, P | 0-1 |
? | 1989 | C60 Ruy Lopez (Spanish opening) | |
| Franett, M | Arganian, D | 1-0 |
? | 1989 | D56 Queen's Gambit Declined, Lasker defence | |
| Hanson, R | Dubisch, R | 0-1 |
? | 1989 | B44 Sicilian defence | |
| Hanson, R | Kleist, F | 1-0 |
? | 1989 | A07 Reti, King's Indian attack (Barcza system) | |
| Leon, J | Barnes, J | 1-0 |
? | 1989 | A00 Polish (Sokolsky) opening | |
| Monahan, D | Kleist, F | 1-0 |
? | 1989 | C87 Ruy Lopez, closed, Averbach variation | |
| Stefurak, D | Kleist, F | 1-0 |
? | 1989 | C83 Ruy Lopez, open, classical defence | |