| 2011 CLASS C CHAMPIONSHIP | ||
| New York State Section XI | ||
| SEMI-FINAL | FINAL | |
| February 19, 2011 | February 22, 2011 | |
| @ Highest Seed | ||
| 1 Greenport (17-1) | ||
| 61-46 | 1 Greenport (18-1) | |
| 4 Southold (10-8) | 56-53 | |
| @ Farmingdale State | 3 Port Jefferson (12-7) | |
| 2 Stony Brook (13-3) | College | Class C Champion |
| 53-48 | 3 Port Jefferson (11-7) | |
| 3 Port Jefferson (10-7) | ||
| 2011 CLASS D CHAMPIONSHIP | ||
| New York State Section XI | ||
| FINAL | ||
| 1 Ross (7-11) | ||
| 1 Ross (7-11) | ||
| Class D Champion | ||
| N/A | ||
| NOTE: Section XI had only one Class D Qualifier | ||