I made fun of our high school coach this week because the schedule he handed out listed our "duels". I thought he was wrong as I had always read it as "duals" (like it says in the KSHSAA rulebook). However, here is what the dictionary says:
DUAL - Composed of two usually like or complementary parts; double: dual controls for pilot and copilot; a car with dual exhaust pipes. Having a double character or purpose: a belief in the dual nature of reality.
DUEL - A prearranged, formal combat between two persons, usually fought to settle a point of honor. A struggle for domination between two contending persons, groups, or ideas.
Thus, I was wrong (again). I don't know why I am posting this other than I thought it was interesting.