Yes. Duel categories have specific weapon requirements. Sword and shield or sword and buckler duels use Type 1 bladed weapons, longsword duels use Type 2 bladed weapons, and polearm duels use approved Type 3 or Type 4 hafted weapons. Melee categories such as 5v5 and mass battles permit a broader selection of historically documented weapons. Always check the current tournament rules because a weapon accepted for one category may not be permitted in another.