1965/66 New Plymouth Mariners season
Gresdon Cup
| Pos | P | W | D | L | GF | GA | GD | Pts |
|---|---|---|---|---|---|---|---|---|
| 1 | 12 | 14 | 12 | 8 | 3 | 1 | +12 | 27 |
| Round / date | Home | Score | Away |
|---|---|---|---|
| Round 2 | New Plymouth Mariners | 2–0 | Gresdon Methodists |
| Round 3 | Port Bristol Rovers | 5–2 | New Plymouth Mariners |
| Round 4 | New Plymouth Mariners | 4–1 | Vaughanstown |
| Round 5 | New Lincoln | 0–1 | New Plymouth Mariners |
| Round 6 | New Plymouth Mariners | 5–2 | Aspley Athletic |
| Round 7 | Gresdon Town | 0–1 | New Plymouth Mariners |
| Round 9 | Gresdon Methodists | 4–4 | New Plymouth Mariners |
| Round 10 | New Plymouth Mariners | 0–0 | Port Bristol Rovers |
| Round 11 | Vaughanstown | 1–4 | New Plymouth Mariners |
| Round 12 | New Plymouth Mariners | 2–1 | New Lincoln |
| Round 13 | Aspley Athletic | 2–2 | New Plymouth Mariners |
| Round 14 | New Plymouth Mariners | 4–3 | Gresdon Town |
Governor's Cup
| Round / date | Home | Score | Away |
|---|---|---|---|
| Governor's Cup Semi-Final 1st Leg | New Plymouth Mariners | 0–1 | Southcastle United |
| Governor's Cup Semi-Final 2nd Leg | Southcastle United | 1–1 | New Plymouth Mariners |