NWC July op
Seattle 1978
| Date | Players | Type | Elo Average | Games | Rounds |
| Jul, 1978 | 7 | Swiss | 343 | 6 | 5 |
| Name | ELO | Points | ||
 |
FM Harper, Bruce | 2.0 | ||
|
GM Seirawan, Yasser | 2400 | 1.0 | |
|
IM Donaldson, John W | 1.0 | ||
|
FM Taylor, Gordon | 1.0 | ||
|
FM Zuk, Robert D | 1.0 | ||
|
FM Campbell, Brett | 0.0 | ||
 |
Acosta, Mariano | 0.0 | ||
NWC July op Games
| White | Black | Result | Round | Date | Opening | View |
| Harper, B | Campbell, B | 1-0  |
? | 1978 | A01 Nimzovich-Larsen attack |   |
| Harper, B | Seirawan, Y | 0-1 |
? | 1978 | B06 Robatsch (modern) defence |   |
| Seirawan, Y | Donaldson, J | 0-1 |
? | 1978 | A36 English, symmetrical variation | |
| Taylor, G | Harper, B | 0-1 |
? | 1978 | A42 Modern defence, Averbakh system | |
| Taylor, G | Harper, B | 1-0 |
? | 1978 | A42 Modern defence, Averbakh system | |
| Zuk, R | Acosta, M | 1-0 |
? | 1978 | C86 Ruy Lopez, Worrall attack | |