Lightweight Rowing 

Men: A men’s lightweight crew, including a single scull (1x), shall have no rower who weighs more than 160 lbs. A youth men’s lightweight youth crew, including a single scull (1x), shall have no rower that weighs more than 150 lbs.

Women: A women’s lightweight crew, including a single scull (1x), shall have no rower who weighs more than 130 lbs. 

Information specific to weight making for lightweight rowers written by Mike Altman, U.S. Olympic lightweight rower 

Weight loss fact sheet provided by the U.S. Olympic Committee