Not Just a Tournament

This can be any sort of plot where an organized competition isn't a simple Tournament Arc, but rather has a behind-the-scenes plot going on. Sometimes the tournament starts out by looking like a mere framing device for the story, then is shown to have a sinister behind-the-scenes purpose. Other times the behind-the-scenes plotting is used as The Reveal. Most of the time, this trope is used as either a setup for a Summation Gathering or the Big Bad's climactic attack on the hero. If there isn't some deeper hidden purpose to the tournament (and there really is just a Framing Device at work) then this isn't the trope you're talking about. Regardless of the exact type of tournament, this often results in whatever reward was promised to the winners being a ruse. At the worst the tournament is Unwinnable by Design. Sometimes its sinister purpose is derived from perpetuating the competition. See also Doom as Test Prize. One possible form an Extreme Sports Plot can take.