The team did not specify a reason for the benching. Chalmers, the hero of Kansas' run to the 2008 NCAA championship, was in uniform and on the active roster. Carlos Arroyo started in his place.
Chalmers had started 104 straight regular-season games since joining the Heat, plus all seven of Miami's playoff games last spring.
Chalmers entered Tuesday averaging 9.5 points and 4.0 assists this season.