1980
Pre-Season Results
| Played | Won | Lost | Draws | For | Against | Points | Position |
| 22 | 11 | 9 | 2 | 335 | 354 | 24 | 7th out of 12 |
| Round 1 | Manly 25 vs Penrith 20 | Penrith |
| Round 2 | Manly 22 vs North Sydney 7 | Brookvale |
| Round 3 | Eastern Suburbs 7 vs Manly 34 | Brookvale |
| Round 4 | Manly 4 vs Western Suburbs 19 | Lidcombe |
| Round 5 | Canterbury 15 vs Manly 12 | Brookvale |
| Round 6 | Manly 2 vs St.George 21 | Brookvale |
| Round 7 | Balmain 11 vs Manly 15 | Brookvale |
| Round 8 | Manly 17 vs Parramatta 15 | Brookvale |
| Round 9 | Manly 17 vs South Sydney 9 | Redfern |
| Round 10 | Manly 14 vs Newtown 13 | Henson |
| Round 11 | Cronulla 14 vs Manly 17 | Brookvale |
| Round 12 | Manly 19 vs St.George 19 | Kogarah |
| Round 13 | Manly 20 vs Penrith 14 | Brookvale |
| Round 14 | Manly 9 vs North Sydney 10 | North Sydney Oval |
| Round 15 | Eastern Suburbs 29 vs Manly 9 | Sydney Sports Ground |
| Round 16 | Manly 11 vs Western Suburbs 8 | Brookvale |
| Round 17 | Canterbury 11 vs Manly 10 | Belmore |
| Round 18 | Balmain 10 vs Manly 18 | Leichhardt |
| Round 19 | Manly 22 vs Parramatta 22 | Cumberland |
| Round 20 | Manly 17 vs South Sydney 26 | Brookvale |
| Round 21 | Manly 9 vs Newtown 19 | Brookvale |
| Round 22 | Cronulla 35 vs Manly 12 | Shark Park |
