Dartmouth (3-3, 2-1 Ivy) amassed 325 yards rushing and 575 of total offense while holding Columbia to just 95 yards.
Jon Marc Carrier got the scoring started with a 2-yard touchdown run in the first quarter and a 17-yard scoring reception in the second. Pierre later ran for a 37-yard score and McNamara returned an interception 24 yards for a touchdown on the ensuing Columbia possession to put the Big Green up 28-0 at halftime.
McNamara also had a 50-yard interception return for a score in the fourth that followed a stretch of three straight Dartmouth touchdown drives.
Columbia (0-6, 0-3) has been outscored 243-45 this year and clinched its seventh straight losing season and its 39th in the past 42 years.
South Carolina AD Ray Tanner is not "100 percent sure" Saturday's game vs. No. 7 LSU will be played at Williams-Brice Stadium because of devastating floods that hit the state.
UCLA junior linebacker Myles Jack has withdrawn from school and will enter the NFL draft, making the decision just weeks after suffering a season-ending knee injury.
A judge has dismissed simple assault charges against Rutgers wide receiver Leonte Carroo after the woman he allegedly attacked after a football game said she didn't want to testify.
Auburn senior receiver D'haquille Williams has been dismissed from the team.
Colorado coach Mike MacIntyre said he was sorry for getting into a sideline altercation with an assistant coach during a 41-24 loss to Oregon over the weekend.
Alabama coach Nick Saban took exception with the media's outlook on his team prior to Saturday's win at Georgia, lashing out at those who "buried" the Crimson Tide.