NWC May op
Seattle 1978
| Date | Players | Type | Elo Average | Games | Rounds |
| May, 1978 | 5 | Swiss | 3 | 5 |
| Name | ELO | Points | ||
|
FM Schill, William | 1.5 | ||
| Montchalin, Michael | 1.0 | |||
|
IM Tangborn, Eric | 0.5 | ||
| Hill, Alan | 0.0 | |||
| Powrie, Charles | 0.0 | |||
NWC May op Games
| White | Black | Result | Round | Date | Opening | View |
| Montchalin, M | Hill, A | 1-0  |
? | 1978 | A67 Benoni, Taimanov variation |   |
| Powrie, C | Schill, W | 0-1 |
? | 1978 | C00 French defence |   |
| Tangborn, E | Schill, W | ½-½ |
? | 1978 | E62 King's Indian, fianchetto variation | |