Chambers was critical of the fact that Terps freshman Melo Trimble earned 12 free throws in the game, while his star senior D.J. Newbill went to the line fewer times.
"It makes no sense," Chambers said. "And if I didn't complain, Newbill would have never got to the foul line. Because Trimble gets there 12 times, and he's a freshman, and he's on the road. It's a joke. It's a joke the way we're officiated. It's disappointing."
But the league determined that Chambers' postgame comments "were in violation of Big Ten Conference Agreement 10.01, which states in part that 'The Big Ten Conference expects all contests involving a member institution to be conducted without compromise to any fundamental element of sportsmanship. Such fundamental elements include integrity of the competition, civility toward all, and respect, particularly toward opponents and officials.'"
The Big Ten said it would have no further comment.
This isn't the first time a public reprimand has come out of a Penn State-Maryland game. Terps football coach Randy Edsall was given the same punishment for failing to control his players in a pregame confrontation with Penn State in November. Maryland wide receiver Stefon Diggs was also given a one-game suspension for his role in that incident.