The cut-off point of fat-free mass index which divided Sekitori wrestlers from other wrestlers is approximately 30 and this value may be one of the anthropometrical indications of whether or not a Sumo wrestler is destined to be successful.doi:10.1080/030144699282886...
and Hakuho the Yotsu. The trade-off for height and weight is pretty basic: Being big makes a wrestler harder to move, but less agile; being small can make it easier for a wrestler to maneuver but leaves him vulnerable.