Board Thread:Questions and Answers/@comment-180.214.233.65-20141121100326/@comment-24.153.115.171-20150520123716

He said he couldn't beat her, but only because he knew the reaction speed was much higher due to the tech she had.

Excalibur (which does factor into the damage), time limit, not fighting in earnest (which is an insult, he knows and everyone knows he is better with twin swords),mediciboid,  and a special, limited, highest combo hit in the game.

Eliminated any of these factors and Kirito most likely wins. Give Kirito the combo and mediboid, he wins easily.