Sumo wrestlers typically weigh between 280 and 450 pounds.
They work hard to achieve their heft and look over many years, by stuffing themselves with massive quantities of food and practicing a form of abdominal development called haragei, which distributes their bulk into an exceptional roundness.
The idea is to have a great deal of weight and a low center of gravity.
Why? Because there are only two ways to lose a sumo match:
- have some body part other than your feet touch ground, or
- be pushed out of the dohyo, a 12-foot ring on an earth-covered floor.
As you can imagine, a bulky body will make it fairly hard for your opponent to move you while making it easier to throw your own weight around.