Footwork is a combat sports term for the skilled use of legs and feet in stand-up fighting. Footwork technique includes a fighter's balance on the balls of her feet, her side-to-side or front-to-back movements that mediate distance, and her creation of momentum for strikes by pivoting.

Christina's footwork has been compared to that of "a young Muhammad Ali" in its favoritism of a nimble, pestering "dance" to encourage an opponent's frustration—thus breaking down defenses before a forceful pounce. In the Iliad (c. 8th century BC), Homer writes of a boxer knocked off his feet:

     The two men, girt up, strode into the midst of the circle
     and faced each other, and put up their ponderous hands at the same time
     and closed, so that their heavy arms were crossing each other,
     and there was a fierce grinding of teeth, the sweat began to run
     everywhere from their bodies. Great Epeios came in, and hit him
     as he peered out from his guard, on the cheek, and he could no longer
     keep his feet, but where he stood the glorious limbs gave.
     As in the water roughened by the north wind a fish jumps
     in the weed of the beach-break, then the dark water closes above him,
     so Euryalos left the ground from the blow…
            Book XXIII, Homer’s Iliad, trans. Richmond Lattimore

Footwork training includes short sprints, skipping rope, ring work and plyometric exercises to enhance muscle elastic strength and explosiveness. One punch by Fortnight luminary mentor Lucia Rijker was recently measured to carry 922 lbs. of force. This advantage was attributed to her powerful signature pivot.