| 2009 CLASS C & D 2010 | |||
| New York State Section | |||
| PLAY-IN | ROUND 1 | ROUND 2 | CHAMPIONSHIP |
| Section XI Class C | February 20, 2010 | ||
| 1 Southold (18-0) | |||
| 50-48 | 2 Stony Brook (12-3) | ||
| Class C Champion | |||
| 2 Stony Brook (11-3) | |||
| Section XI Class D | February 20, 2010 | ||
| 1 Greenport (12-6) | |||
| 58-35 | 1 Greenport (13-6) | ||
| Class D Champion | |||
| 2 Bridgehampton (8-10) | |||