2017-18 ECAC Men's Season

This is the 2017-18 ECAC Hockey Men's Season. This is the league's 57th season.

Membership changes

 * None

Format
All twelve teams qualify with the top 4 seeds getting a first round bye. The best-of-three first round matches up 5 vs 12, 6 vs 11, 7 vs 10, and 8 vs 9. The first round winners are re-seeded for the best-of-three quarterfinals and the 1 seed plays the lowest seeded first round winner, 2 plays the second lowest seed first round winner, 3 plays the third lowest first round winner. and 4 plays the highest seeded first round winner. Teams are re-seeded for the semifinals with the highest seeded winner playing the lowest seeded winner and the second and third seeds meet in a single game at Herb Brooks Arena in Lake Placid, New York. The semifinal winners meet at the Herb Brooks Arena in Lake Placid, New York for the conference championship and the conference's automatic bid to the 2018 NCAA Division I Men's Ice Hockey Tournament.

First Round

 * Dartmouth Big Green defeated St. Lawrence Saints 2 games to 1
 * Colgate Raiders defeated RPI Engineers 2 games to 1
 * Princeton Tigers defeated Brown Bears 2 games to none
 * Quinnipiac Bobcats defeated Yale Bulldogs 2 games to none

Quarterfinals

 * Cornell Big Red defeated Quinnipiac Bobcats 2 games to none
 * Princeton Tigers defeated Union Dutchmen 2 games to none
 * Clarkson Golden Knights defeated Colgate Raiders 2 games to 1
 * Harvard Crimson defeated Dartmouth Big Green 2 games to 1

Semifinals

 * Princeton Tigers defeated Cornell Big Red 4-1
 * Clarkson Golden Knights defeated Harvard Crimson 5-4 (ot)

Final

 * Princeton Tigers defeated Clarkson Golden Knights 2-1 (ot)