Marks played Rebekka Hanle from Rice University and lost 2-6, 6-1, 7-6(4). Landsman lost to Alex Cercone from the University of Florida, 1-6, 7-5, 6-2.
Monday's consolation matches were postponed due to rain and will be played Tuesday. Marks will play Vicky Brook from Yale Tuesday at 11:30.
"The girls played hard today, we just need to finish stronger," assistant coach Ryan Stotland said. "We have a lot to look forward to as the season progresses."
For live updates and tournament information, visit www.itatennis.com.