Bennett Stirtz had 21 points and four assists as No. 11 Drake upset No. 6 Missouri 67-57 in the first round of NCAA Tournament’s West Region on Thursday night in Wichita, Kan.Tavion Banks added 15 points for the Bulldogs (31-3), who will face the winner of No. 3 Texas Tech and No. 14 UNC Wilmington game on Saturday.Caleb Grill scored 14 points and Tamar Bates added 10 for the Tigers (22-12).This matchup presented a clash of playing styles, as fast-paced Missouri came into the game ranked ninth in the nation in scoring offense at 84.5 points per game.Drake, featuring a more-deliberate attack, ranked first in scoring defense, allowing just 58.4 points per contest.The Tigers played a pressuring man-to-man defense with some matchup zone mixed in. They tried to speed up the Bulldogs and force live-ball turnovers to feed their transition game.But the Bulldogs dictated a slower pace by running a patient halfcourt offense. Stirtz, the Missouri Valley Conference Player of the Year, scored nine early points as Drake pushed to a 13-7 lead with 11:05 left in the first half.Jacob Crews hit a 3-point jumper to stabilize the Tigers, but Stirtz countered with a triple of his own to put Drake up 18-12.Missouri picked up its pressure and got transition baskets from Grill and Bates, but, after a timeout, the Bulldogs got into their offense as Isaiah Jackson’s layup off a Stirtz pass upped Drake’s advantage to 28-18.