The 2009 Patriot League Men's Lacrosse Championship will be held at Bucknell University's Christy-Mathewson Memorial Stadium as determined by regular-season standings with the top four teams qualifying for the tournament. Two semifinal games will take place on Friday, April 24 with the No. 1 seed Bucknell facing the No. 4 seed Army at 3 p.m. and the No. 2 seed Colgate facing the No. 3 seed Navy at 5:45 p.m. The championship game will be played on Sunday, April 26 at 3 p.m., and all contests will be shown live on CBS College Sports Network. The winner earns the Patriot League's automatic bid to the NCAA Tournament. Tickets for the semifinal round are $5 for adults and $2 for children under 16, while Championship tickets are $7 and $4, respectively. Tickets to the tournament will be on sale at the Christy Mathewson-Memorial Stadium ticket windows 90 minutes prior to game time on both Friday and Sunday.
| 2009 Patriot League Men's Lacrosse Championship Schedule | ||
| Friday, April 24 | ||
| Semifinal 1: No. 1 Bucknell 10, No. 4 Army 8 (CBSC) | 3 p.m. | Box Score | Recap |
| Semifinal 2: No. 3 Navy 9, No. 2 Colgate 8, 3OT (CBSC) | 5:45 p.m. | Box Score | Recap |
| Sunday, April 26 | ||
| Championship: No. 3 Navy 9, No. 1 Bucknell 8 (CBSC) | 3 p.m. | Box Score | Recap |
