The 2020 Patriot League men's basketball tournament was the postseason tournament for the Patriot League during the 2019–20 NCAA Division I men's basketball season. It was held on March 3, 5, 8, and 11, with the higher seed in each match up hosting at their respective campus sites. No. 3 seed Boston University defeated Colgate 64–61 in the championship game to win the conference tournament championship and the conference's automatic bid to the 2020 NCAA Division I men's basketball tournament. The NCAA Tournament would be subsequently canceled in order to mitigate the spread of COVID-19. The Patriot League was the final conference to hold its championship game before all others remaining were cancelled due to the COVID-19 pandemic.

The Patriot League Tournament Championship was Boston University's first since joining the conference in 2013.

Seeds All 10 Patriot League teams are eligible for the tournament. The top six teams receive a first round bye. Teams are seeded by record within the conference, with a tiebreaker system to seed teams with identical conference records.

SeedSchoolConfTiebreaker 1Tiebreaker 2Tiebreaker 3Tiebreaker 4Tiebreaker 51Colgate14–42American12–61–1 vs. Boston University0–2 vs. Colgate2–0 vs. Army1–1 vs. Lafayette2–0 vs. Navy3Boston University12–61–1 vs. American0–2 vs. Colgate2–0 vs. Army1–1 vs. Lafayette1–1 vs. Navy4Army10–82–0 vs. Lafayette5Lafayette10–80–2 vs. Army6Navy8–102–0 vs. Bucknell7Bucknell8–100–2 vs. Navy8Lehigh7–112–0 vs. Loyola (MD)9Loyola (MD)7–110–2 vs. Lehigh10Holy Cross2–16

Schedule GameTime*MatchupScoreAttendanceTelevision First round – Tuesday, March 317:00 pmNo. 9 Loyola (MD) at No. 8 LehighPLN27:00 pmNo. 10 Holy Cross at No. 7 Bucknell Quarterfinals – Thursday, March 537:00 pmNo. 8 Lehigh at No. 1 Colgate70–831,368PLN47:00 pmNo. 5 Lafayette at No. 4 Army73–6833457:00 pmNo. 6 Navy at No. 3 Boston University63–6951767:00 pmNo. 7 Bucknell at No. 2 American64–591,039 Semifinals – Sunday, March 8712:00 pmNo. 5 Lafayette at No. 1 Colgate65–881,834CBSSN82:00 pmNo. 7 Bucknell at No. 3 Boston University61–641,334 Championship – Wednesday, March 1197:30 pmNo. 3 Boston University at No. 1 Colgate64–611,724CBSSN *Game times in ET. Rankings denote tournament seeding. All games hosted by higher-seeded team.

Bracket

References