Every so often (originally 3 Mondays per month, then became monthly), I would introduce a new course that people could play. To further tighten the competition, random course tournaments would close at the end of every season (originally monthly, then became quarterly).
Still, multiple issues put an end to this, notably the fact that there is a hard limit of 16 courses, and the available pre-designed courses alone exceeds this limit!]]>
An automated system can easily just run away with itself and make the whole competition feel lifeless. Users manually posting their own replays on the other hand adds a sense of pride, and seems to stir up a lot of good conversation between players that contributes to the overall fun of it.