| 2005 Division I Ice Hockey |
| First Round | Quarterfinal | Semifinal | Final | ||||
| 1 Fermi 9-3 16 Immaculate @Enfield Twin Rinks |
3/2 | Fermi Notre Dame-West Haven 5-4 @Enfield Twin Rinks |
3/5 | Notre Dame-West Haven 3-1 Notre Dame-Fairfield @Ingalls Rink |
3/9 | Notre Dame-West Haven Fairfield Prep 4-1 @Ingalls Rink |
3/12 |
| 8 Westhill 9 Notre Dame-West Haven 6-1 @Terry Connors |
3/2 | ||||||
| 4 Darien 13 Notre Dame-Fairfield 6-2 @Darien |
3/2 | Notre Dame-Fairfield 3-2 (OT) East Haven @East Haven |
3/5 | ||||
| 5 Enfield 12 East Haven 2-1 (OT) @Enfield Twin Rinks |
3/2 | ||||||
| 2 Simsbury 5-0 15 Daniel Hand @International Skating Center |
3/2 | Simsbury New Canaan 7-2 @International Skating Center |
3/5 | New Canaan Fairfield Prep 5-2 @Ingalls Rink |
3/9 | ||
| 7 New Canaan 4-1 10 Lyman Hall @Darien |
3/2 | ||||||
| 3 Fairfield Prep 6-1 14 West Haven @Wonderland of Ice |
3/2 | Fairfield Prep 2-1 Hamden @Wonderland of Ice |
3/5 | ||||
| 6 Hamden 3-1 11 Ridgefield @Veterans Rink, Hamden |
3/2 | ||||||
2005 Division I Ice Hockey Rankings
| SCHOOL/TOWN | RATING | PCT | WON | LOST | TIED | TIEBREAKER |
| Fermi | 1 | 0.950 | 19 | 1 | 0 | |
| Simsbury | 2 | 0.944 | 17 | 1 | 0 | |
| Fairfield Prep | 3 | 0.893 | 12 | 1 | 1 | |
| Darien | 4 | 0.825 | 16 | 3 | 1 | |
| Enfield | 5 | 0.789 | 15 | 4 | 0 | |
| Hamden | 6 | 0.765 | 11 | 2 | 4 | |
| New Canaan | 7 | 0.750 | 15 | 5 | 0 | Head-to-Head (1-0-0) |
| Westhill | 8 | 0.750 | 15 | 5 | 0 | Most Wins |
| Notre Dame-West Haven | 9 | 0.750 | 12 | 4 | 0 | |
| Lyman Hall | 10 | 0.737 | 14 | 5 | 0 | |
| Ridgefield | 11 | 0.579 | 11 | 8 | 0 | |
| East Haven | 12 | 0.550 | 10 | 8 | 2 | |
| Notre Dame-Fairfield | 13 | 0.528 | 9 | 8 | 1 | |
| West Haven | 14 | 0.525 | 10 | 9 | 1 | Head-to-Head (1-0-0) |
| Daniel Hand | 15 | 0.525 | 10 | 9 | 1 | |
| Immaculate | 16 | 0.500 | 10 | 10 | 0 |