Yale captain Andrew Miller scored the game- winner just under seven minutes into overtime to send the Bulldogs to their first-ever National Championship game with a 3-2 victory over Massachusetts- Lowell in the Frozen Four on Thursday at CONSOL Energy Center.
Antoine Laganiere and Mitch Witeck each scored once for the Bulldogs (21-12-3), who shocked Minnesota in the West Regional Opener before upending perennial powerhouse North Dakota in the regional final to reach Pittsburgh.
Jeff Malcolm made 16 saves to backstop the victory.
Yale will next face the winner between St. Cloud State and Quinnipiac in Saturday's title game.
Joseph Pendenza and Riley Wetmore lit the lamp for UMass-Lowell (28-11-2), which won the Hockey East regular-season and playoff championships.
Connor Hellebuyck posted 44 saves in the setback.
The Bulldogs potted a pair of goals in the first to take control after 20 minutes, but the River Hawks responded with two goals in a 14-second span late in the second to even the score.
After peppering Hellebuyck with 16 shots in a scoreless third period, Yale finally broke through just under seven minutes into overtime when Miller chipped the puck past a defender at the blue line and recovered it just above the right circle before cutting in front and beating Hellebuyck with a backhander through the five-hole to send his team to victory.