| 2003-12-28 | PeterborovGrimsbyLeague One · England | 0–0 | League One · England |
| 2003-12-26 | GrimsbyvOldhamLeague One · England | 3–3 | League One · England |
| 2003-12-13 | BournemouthvGrimsbyLeague One · England | 0–0 | League One · England |
| 2003-11-29 | GrimsbyvTranmereLeague One · England | 0–1 | League One · England |
| 2003-11-22 | BrentfordvGrimsbyLeague One · England | 1–3 | League One · England |
| 2003-11-15 | GrimsbyvStockportLeague One · England | 1–1 | League One · England |
| 2003-11-01 | Rushden & DvGrimsbyLeague One · England | 3–1 | League One · England |
| 2003-10-25 | BarnsleyvGrimsbyLeague One · England | 0–0 | League One · England |
| 2003-10-21 | GrimsbyvNotts CountyLeague One · England | 2–0 | League One · England |
| 2003-10-18 | GrimsbyvColchesterLeague One · England | 2–0 | League One · England |
| 2003-10-11 | BrightonvGrimsbyLeague One · England | 3–0 | League One · England |
| 2003-10-04 | GrimsbyvQPRLeague One · England | 0–1 | League One · England |
| 2003-09-30 | BlackpoolvGrimsbyLeague One · England | 0–1 | League One · England |
| 2003-09-27 | Sheffield WedsvGrimsbyLeague One · England | 0–0 | League One · England |
| 2003-09-20 | GrimsbyvChesterfieldLeague One · England | 4–0 | League One · England |
| 2003-09-16 | GrimsbyvSwindonLeague One · England | 1–2 | League One · England |
| 2003-09-12 | HartlepoolvGrimsbyLeague One · England | 8–1 | League One · England |
| 2003-09-06 | GrimsbyvPeterboroLeague One · England | 1–1 | League One · England |
| 2003-08-30 | Bristol CityvGrimsbyLeague One · England | 1–0 | League One · England |
| 2003-08-25 | GrimsbyvWycombeLeague One · England | 3–1 | League One · England |
| 2003-08-23 | LutonvGrimsbyLeague One · England | 1–2 | League One · England |
| 2003-08-16 | GrimsbyvPort ValeLeague One · England | 1–2 | League One · England |
| 2003-08-09 | PlymouthvGrimsbyLeague One · England | 2–2 | League One · England |
| 2003-05-04 | GrimsbyvBrightonChampionship · England | 2–2 | Championship · England |
| 2003-04-26 | ReadingvGrimsbyChampionship · England | 2–1 | Championship · England |
| 2003-04-21 | GrimsbyvWalsallChampionship · England | 0–1 | Championship · England |
| 2003-04-19 | Sheffield WedsvGrimsbyChampionship · England | 0–0 | Championship · England |
| 2003-04-12 | GrimsbyvCrystal PalaceChampionship · England | 1–4 | Championship · England |
| 2003-04-08 | GrimsbyvWolvesChampionship · England | 0–1 | Championship · England |
| 2003-04-05 | LeicestervGrimsbyChampionship · England | 2–0 | Championship · England |
| 2003-03-22 | BurnleyvGrimsbyChampionship · England | 1–1 | Championship · England |
| 2003-03-18 | RotherhamvGrimsbyChampionship · England | 0–1 | Championship · England |
| 2003-03-15 | GrimsbyvWatfordChampionship · England | 1–0 | Championship · England |
| 2003-03-10 | Nott'm ForestvGrimsbyChampionship · England | 2–2 | Championship · England |
| 2003-03-04 | GrimsbyvSheffield UnitedChampionship · England | 1–4 | Championship · England |
| 2003-03-01 | GrimsbyvCoventryChampionship · England | 0–2 | Championship · England |
| 2003-02-22 | IpswichvGrimsbyChampionship · England | 2–2 | Championship · England |
| 2003-02-15 | GillinghamvGrimsbyChampionship · England | 3–0 | Championship · England |
| 2003-02-08 | GrimsbyvStokeChampionship · England | 2–0 | Championship · England |
| 2003-02-01 | PortsmouthvGrimsbyChampionship · England | 3–0 | Championship · England |
| 2003-01-25 | GrimsbyvBradfordChampionship · England | 1–2 | Championship · England |
| 2003-01-18 | GrimsbyvMillwallChampionship · England | 0–2 | Championship · England |
| 2003-01-11 | WimbledonvGrimsbyChampionship · England | 3–3 | Championship · England |