Round 19 - 1978
| 29-Jul-1978,North_Sydney | |||||||
| Norths 16 | Balmain 8 | ||||||
| John Adam | 1 | Larry Corowa | 1 | ||||
| Don McKinnon | 1 | Gary Spears | 1 | ||||
| Peter Schofield | 5 | Peter Ninness | 1 | ||||
| 30-Jul-1978,Penrith | |||||||
| Penrith 18 | St George 19 | ||||||
| Kevin Dann | 1 | Michel Sorridimi | 1 | ||||
| John Ryan | 1 | Ken Kearney | 2 | 5 | |||
| Paul Merlo | 1 | ||||||
| Phil Gould | 3 | ||||||
| Ken Wilson | 1 | 1 | |||||
| 30-Jul-1978,Sports_Ground | |||||||
| Easts 20 | Newtown 11 | ||||||
| Bill Mullins | 2 | Paul Hayward | 1 | ||||
| Ian Schubert | 1 | Mike Kermode | 4 | ||||
| Kevin Hastings | 1 | ||||||
| Kevin Stevens | 4 | ||||||
| 30-Jul-1978,Redfern | |||||||
| Souths 10 | Manly 14 | ||||||
| Peter Tunks | 1 | Steve Martin | 1 | ||||
| Ken Stewart | 1 | Ian Martin | 1 | ||||
| Eric Ferguson | 2 | John Gray | 4 | ||||
| 30-Jul-1978,Lidcombe | |||||||
| Wests 32 | Parramatta 12 | ||||||
| Ron Giteau | 2 | John Kolc | 1 | ||||
| Graeme O'Grady | 1 | Geoff Gerard | 1 | ||||
| Wayne Smith | 1 | Mick Cronin | 3 | ||||
| Buddy Cain | 1 | ||||||
| Peter Rowles | 1 | 7 | |||||
| 30-Jul-1978,Endeavour | |||||||
| Cronulla 14 | Canterbury 4 | ||||||
| Greg Pierce | 1 | Stan Cutler | 2 | ||||
| Mick Mullane | 1 | ||||||
| Barry Andrews | 4 | ||||||