Tā de quánshù zài bǐsài zhōng zhǎnxiàn de línlí jìnzhì.
His fighting technique was fully on display in the match.
Tips
usage
拳术 specifically covers unarmed (fist-based) martial arts like 太极拳, 南拳, 长拳. For the broader umbrella including weapons and staged forms, use 武术 (wǔshù). 功夫 (gōngfu) is the looser, more colloquial term foreigners know.