A pin, or fall, is a victory condition in various forms of wrestling that is met by holding an opponent's shoulders or scapulae (shoulder blades) on the wrestling mat for a prescribed period of time.

In Greco-Roman and freestyle wrestling, the two shoulders of the defensive wrestler must be held long enough for the referee to "observe the total control of the fall" (usually ranging from one half-second to about one or two seconds).

Then either the judge or the mat chairman concurs with the referee that a fall is made.

[3] In American scholastic (or folkstyle) wrestling, a pin must be held for two seconds.

A guillotine is initiated when both wrestlers are face down on the mat, the attacker on top of the opponent.

The attacker reaches across to grab the arm opposite to the side that the leg ride is on.

(The guillotine is most easily applied if the opponent is reaching back during the leg ride.)