| | | |
| December 7, 2003 | Lansing Ice Nuts 3 at Northern Michigan Predators 2 | Final |
| December 12, 2003 | Soo City Mavericks 6 at Northern Michigan Predators 2 | Final |
| December 12, 2003 | Lansing Ice Nuts 7 at Ohio Valley Ice Cats 5 | Final |
| December 13, 2003 | Lansing Ice Nuts 2 at Ohio Valley Ice Cats 1 | Final (SO) |
| December 14, 2003 | Northern Michigan Predators 3 at Lansing Ice Nuts 5 | Final |
| December 19, 2003 | Soo City Mavericks 3 at Lansing Ice Nuts 5 | Final |
| December 20, 2003 | Soo City Mavericks 4 at Lansing Ice Nuts 6 | Final |
| December 21, 2003 | Ohio Valley Ice Cats 2 at Lansing Ice Nuts 6 | Final |
| December 26, 2003 | Northern Michigan Predators 5 at Soo City Mavericks 4 | Final |
| December 27, 2003 | Motor City Snipers 1 at Lansing Ice Nuts 4 | Final |
| December 27, 2003 | Northern Michigan Predators 5 at Soo City Mavericks 4 | Final |
| December 30, 2003 | Motor City Snipers 5 at Lansing Ice Nuts 7 | Final |
| December 31, 2003 | Ohio Valley Ice Cats 0 at Lansing Ice Nuts 13 | Final |
| December 31, 2003 | Soo City Mavericks 3 at Northern Michigan Predators 4 | Final |
| January 2, 2004 | Ohio Valley Ice Cats 0 at Northern Michigan Predators 0 | 1:30 p.m. |
| January 2, 2004 | Ohio Valley Ice Cats 0 at Soo City Mavericks 0 | 8:15 p.m. |
| January 3, 2004 | Lansing Ice Nuts 2 at Northern Michigan Predators 1 | Final |
| January 4, 2004 | Northern Michigan Predators 5 at Lansing Ice Nuts 2 | Final |
| January 4, 2004 | Ohio Valley Ice Cats 0 at Soo City Mavericks 0 | 3:00 p.m. |
| January 9, 2004 | Ohio Valley Ice Cats 0 at Tri-State Hurricanes 0 | 8:00 p.m. |
| January 10, 2004 | Northern Michigan Predators 0 at Motor City Snipers 0 | 5:30 p.m. |
| January 10, 2004 | Ohio Valley Ice Cats 0 at Tri-State Hurricanes 0 | 8:00 p.m. |
| January 11, 2004 | Tri-State Hurricanes 0 at Motor City Snipers 0 | 5:30 p.m. |
International Independent Hockey League Schedule
