Semi Finals
| Date | Winner | Score | Loser | Score | Venue |
|---|---|---|---|---|---|
| 6/08/80 | Parramatta | 9 | Wests | 6 | Leichhardt Oval |
| 13/08/80 | Balmain | 18 | Easts | 8 | Leichhardt Oval |
Read more about this topic: 1980 Tooth Cup
Semi Finals
| Date | Winner | Score | Loser | Score | Venue |
|---|---|---|---|---|---|
| 6/08/80 | Parramatta | 9 | Wests | 6 | Leichhardt Oval |
| 13/08/80 | Balmain | 18 | Easts | 8 | Leichhardt Oval |
Read more about this topic: 1980 Tooth Cup