Guide
Greco-Roman, from the lock down
No legs. A sport of underhooks, lifts, and the ordered minute on the mat after a stall.

Greco-Roman forbids attacks below the waist. The sentence is short. The sport is not. Without a shot to the ankle, heads get heavier. Hands hunt underhooks and body locks, because a lock is the door to a lift, and a lift is the door to a score large enough to settle a final.
When neither athlete will open, the referee can judge passivity and order par terre. One wrestler on the mat, the other behind, a short chance to turn or throw. Viewers who call the style slow are often waiting for a leg attack. The action is in the grip. The side-angle study is the same idea with the camera moved.
The weights, briefly
Olympic Greco-Roman is 60, 67, 77, 87, 97 and 130 kilograms. The heaviest class spent years in the shadow of Mijaín López, five Olympic golds, and is now a division that has to justify itself without him. The essay is about that problem. This page is about how to see a lock.
You do not need a classical education. You need to believe two athletes can settle a fight without reaching for a leg. The mat, repeatedly, says they can. Stand where you can see the hands. If the broadcast camera sits behind the circle, the side angle in your head matters more. Hips tell you who is about to try to lift. Hands tell you whether they have the right to.