Challenger redirects here; for additional meanings, please see Challenger (disambiguation).
A competitor, contender, contestant, challenger, or player was someone who participated in a contest, sport, game, or other competition.
In 2268, Provider 1 accepted James T. Kirk's wager, provided that he alone fight three thrall contestants of their choosing. One of the rules was that touching the color of an opponent deprived a thrall of one of their weapons. (TOS: "The Gamesters of Triskelion")