The Colorado School of Mines football program’s regular-season dominance faced a stern test Saturday in Topeka, Kansas. The fifth-ranked Orediggers found a way, as redshirt junior Landon Walker ran in four touchdowns and Washburn missed a potential game-tying field goal in the waning moments to allow Mines to escape with a 31-28 win. The three-point difference tied for the narrowest margin of victory for the Orediggers (2-0) in a regular-season win streak that extended to 22 on Saturday.