The following are the details for the Mariner's Isuzu Ute A-League Mens competition for Season 2025/26. All kick-off times are in Sydney time zone.
| Round | Date | Kick-Off | Opponent | Venue | Result | Goal Scorers | Ladder Position | Other Info |
| 1 | 19-Oct-2025 | 3:00 pm | Newcastle Jets | Polytec Stadium, Gosford | ||||
| 2 | 25-Oct-2025 | 7:35 pm | Sydney FC | Leichhardt Oval Lilydale1 | ||||
| 3 | 02-Nov-2025 | 5:00pm | Wellington Phoenix | Polytec Stadium, Gosford | Double Header | |||
| 4 | 07-Nov-2025 | 9:45 pm | Perth Glory | HBF Park, Perth | ||||
| 5 | 22-Nov-2025 | 5:00 pm | Western Sydney Wanderers | CommBank Stadium, Parramatta | ||||
| 6 | 29-Nov-2025 | 5:00 pm | Melbourne City | Polytec Stadium, Gosford | Double Header | |||
| 7 | 06-Dec-2025 | 7:35 pm | Sydney FC | Polytec Stadium, Gosford | Double Header | |||
| 8 | 12-Dec-2025 | 7:35 pm | Auckland FC | Polytec Stadium, Gosford | ||||
| 9 | 21-Dec-2025 | 1:00 pm | Wellington Phoenix | Sky Stadium, Wellington | ||||
| 10 | 31-Dec-2025 | 7:00 pm | Brisbane Roar | Polytec Stadium, Gosford | Double Header | |||
| 11 | 04-Jan-2026 | 7:35 pm | Adelaide United | Coopers Stadium, Hindmarsh | Double Header (Away) | |||
| 12 | 10-Jan-2026 | 9:45 pm | Perth Glory | HBF Park, Perth | ||||
| 13 | 17-Jan-2026 | 6:00 pm | Macarthur Bulls | Polytec Stadium, Gosford | ||||
| 14 | 24-Jan-2026 | 3:00 pm | Auckland FC | Go Media Stadium, Auckland | ||||
| 15 | 01-Feb-2026 | 5:00 pm | Melbourne Victory | Polytec Stadium, Gosford | ||||
| 16 | 07-Feb-2026 | 5:00 pm | Brisband Roar | Kayo Stadium, Redcliffe | ||||
| 17 | TBC | TBC | Melbourne City | AAMI Park, Melbourne | ||||
| 18 | 22-Feb-2026 | 5:00 pm | Western Sydney Wanderers | Polytec Stadium, Gosford | ||||
| 19 | 28-Feb-2026 | 5:00 pm | Newcastle Jets | Polytec Stadium, Gosford | ||||
| 20 | TBC | TBC | Macarthur Bulls | Campbelltown Sports Stadium, Campbelltown | ||||
| 21 | 14-Mar-2025 | 3:00 pm | Adelaide United | Polytec Stadium, Gosford | ||||
| 22 | 21-Mar-2026 | 5:00 pm | Melbourne Victory | AAMI Park, Melbourne | ||||
| 23 | 04-Apr-2026 | 3:00 pm | Perth Glory | Polytec Stadium, Gosford | Double Header | |||
| 24 | 10-Apr-2026 | 7:35 pm | Brisbane Roar | Polytec Stadium, Gosford | ||||
| 25 | 19-Apr-2026 | 1:00p pm | Auckland FC | Go Media Stadium, Auckland | ||||
| 26 | 25-Apr-2026 | 5:00 pm | Newcastle Jets | McDonald Jones Stadium, Boradmeadow |