Top-ranked Minnesota Duluth neatly handed Colorado College its first shutout of the season, scoring once in each period en route to a 3-0 win Friday at Amsoil Arena. The Tigers dropped their third straight and fell to 4-4-1, 0-3 in the National Collegiate Hockey Conference. The Bulldogs scored all three with traffic in front of goaltender Alex Leclerc. Justin Richards tipped a shot past the junior in the first period, then Nick Wolff doubled the lead at 7:31 of the second. A period and four seconds later, Parker Mackay beat Leclerc high on the Bulldogs’ only power play of the night. Hunter Shepard made 19 saves for his clean sheet.