| 2004-12-29 | LincolnvGrimsbyLeague Two · England | 0–0 | League Two · England |
| 2004-12-26 | GrimsbyvMacclesfieldLeague Two · England | 0–0 | League Two · England |
| 2004-12-17 | GrimsbyvOxfordLeague Two · England | 1–1 | League Two · England |
| 2004-12-11 | YeovilvGrimsbyLeague Two · England | 2–1 | League Two · England |
| 2004-12-07 | GrimsbyvNotts CountyLeague Two · England | 3–2 | League Two · England |
| 2004-11-26 | SouthendvGrimsbyLeague Two · England | 1–1 | League Two · England |
| 2004-11-20 | GrimsbyvKidderminsterLeague Two · England | 2–1 | League Two · England |
| 2004-11-06 | ScunthorpevGrimsbyLeague Two · England | 2–0 | League Two · England |
| 2004-10-30 | GrimsbyvSwanseaLeague Two · England | 1–1 | League Two · England |
| 2004-10-23 | ChestervGrimsbyLeague Two · England | 2–1 | League Two · England |
| 2004-10-19 | ShrewsburyvGrimsbyLeague Two · England | 1–1 | League Two · England |
| 2004-10-16 | GrimsbyvBristol RvsLeague Two · England | 0–0 | League Two · England |
| 2004-10-08 | NorthamptonvGrimsbyLeague Two · England | 0–1 | League Two · England |
| 2004-10-01 | GrimsbyvCheltenhamLeague Two · England | 1–1 | League Two · England |
| 2004-09-25 | CambridgevGrimsbyLeague Two · England | 0–2 | League Two · England |
| 2004-09-18 | GrimsbyvLeyton OrientLeague Two · England | 2–0 | League Two · England |
| 2004-09-11 | MacclesfieldvGrimsbyLeague Two · England | 3–1 | League Two · England |
| 2004-09-04 | GrimsbyvRochdaleLeague Two · England | 0–1 | League Two · England |
| 2004-08-30 | WycombevGrimsbyLeague Two · England | 2–0 | League Two · England |
| 2004-08-28 | GrimsbyvMansfieldLeague Two · England | 2–0 | League Two · England |
| 2004-08-21 | Rushden & DvGrimsbyLeague Two · England | 1–0 | League Two · England |
| 2004-08-14 | GrimsbyvBuryLeague Two · England | 5–1 | League Two · England |
| 2004-08-10 | GrimsbyvBostonLeague Two · England | 1–1 | League Two · England |
| 2004-08-07 | DarlingtonvGrimsbyLeague Two · England | 1–0 | League Two · England |
| 2004-05-08 | TranmerevGrimsbyLeague One · England | 2–1 | League One · England |
| 2004-05-01 | GrimsbyvBrentfordLeague One · England | 1–0 | League One · England |
| 2004-04-24 | StockportvGrimsbyLeague One · England | 2–1 | League One · England |
| 2004-04-17 | GrimsbyvRushden & DLeague One · England | 1–0 | League One · England |
| 2004-04-12 | GrimsbyvBlackpoolLeague One · England | 0–2 | League One · England |
| 2004-04-10 | QPRvGrimsbyLeague One · England | 3–0 | League One · England |
| 2004-04-03 | GrimsbyvSheffield WedsLeague One · England | 2–0 | League One · England |
| 2004-03-27 | ChesterfieldvGrimsbyLeague One · England | 4–4 | League One · England |
| 2004-03-20 | GrimsbyvHartlepoolLeague One · England | 0–2 | League One · England |
| 2004-03-17 | SwindonvGrimsbyLeague One · England | 2–0 | League One · England |
| 2004-03-13 | GrimsbyvBournemouthLeague One · England | 1–1 | League One · England |
| 2004-03-06 | WrexhamvGrimsbyLeague One · England | 3–0 | League One · England |
| 2004-03-02 | Notts CountyvGrimsbyLeague One · England | 3–1 | League One · England |
| 2004-02-28 | GrimsbyvBarnsleyLeague One · England | 6–1 | League One · England |
| 2004-02-24 | GrimsbyvLutonLeague One · England | 3–2 | League One · England |
| 2004-02-21 | ColchestervGrimsbyLeague One · England | 2–0 | League One · England |
| 2004-02-17 | GrimsbyvBristol CityLeague One · England | 1–2 | League One · England |
| 2004-02-14 | GrimsbyvBrightonLeague One · England | 2–1 | League One · England |
| 2004-02-08 | OldhamvGrimsbyLeague One · England | 6–0 | League One · England |
| 2004-01-20 | GrimsbyvWrexhamLeague One · England | 1–3 | League One · England |
| 2004-01-17 | Port ValevGrimsbyLeague One · England | 5–1 | League One · England |
| 2004-01-10 | GrimsbyvPlymouthLeague One · England | 0–0 | League One · England |
| 2004-01-03 | WycombevGrimsbyLeague One · England | 4–1 | League One · England |