| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2018/2019 | Premiership | 2 | 180 | 0 | 0 | 0 | — |
| 2019/2020 | Premiership | 3 | 127 | 1 | 0 | 0.71 | — |
| 2020/2021 | Premiership | 12 | 499 | 4 | 0 | 0.72 | 0 |
| 2022 | National League (New Zealand) | 2 | — | 4 | 0 | — | — |
| 2023 | National League (New Zealand) | 20 | 1415 | 0 | 0 | 0 | — |
Domestic league competitions only (SportMonks sub_type='domestic'); national-team, continental and cup competitions are excluded. Classification resolved by league id against the canonical leagues index. G+A/90 computed from minutes actually played.
Cohort: 75 National League (New Zealand) midfielders, 2023, min. 450 minutes. Computed by ranking the full league corpus, not taken from any feed.
Figures computed from the GioScore season-stats database · as of 2026-08-31
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Auckland City | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 |
 Team Wellington | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Hawke's Bay United | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Hamilton Wanderers | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Southern United | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Eastern Suburbs | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Manukau United | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Over 20 National League (New Zealand) games in 2023 (1,415 minutes), Jack Duncan recorded no direct goal contributions. Against a 75-strong pool of National League (New Zealand) midfielders (2023, min. 450 minutes), his goal involvements per 90 places in the 26th percentile, while ranking 56th of 72 for goals.
The record shows 5 league seasons for him (2018–2023) across 4 clubs.
