Players on the Saint Mary’s bench react during the second half of their 81-62 victory over Gonzaga on Monday in Las Vegas.

Las Vegas ? Mickey McConnell matched his career high with 26 points, Ben Allen added a career-best 20, and Saint Mary’s upset No. 18 Gonzaga in an 81-62 victory Monday night in the West Coast Conference tournament title game.

Jorden Page scored 11 points, and Omar Samhan had nine points and seven rebounds for the Gaels (26-5), who earned the sixth NCAA Tournament berth in the small Bay Area school’s history with a remarkable shooting performance against the top-seeded Zags (26-6), the 10-time regular-season WCC champions.

McConnell and Allen hit four three-pointers apiece, propelling the Gaels to a first-half lead before an electric 18-7 run down the second-half stretch.

Saint Mary’s won the WCC tournament for just the second time since it began in 1987, beating Gonzaga for the first time in 10 tourney meetings.

Steven Gray scored 16 points and Matt Bouldin added 14 for Gonzaga, which had won nine of the last 11 WCC tournaments. Elias Harris managed just eight points on 3-of-13 shooting, and the Zags couldn’t match Saint Mary’s second-half rally.

The Zags likely are still headed back to the NCAAs, but they won’t get the WCC’s automatic bid for just the third time in 12 years.

Saint Mary’s lost 83-58 to Gonzaga in last year’s tournament title game at the Orleans Arena, and subsequently were denied an at-large NCAA berth.