Let's see...
A few local martial arts sparring tournaments over the years, more often placing somewhere in the top 10 though. One regional tournament where I was second.
A few scout skill competitions, the latest first place was a local championship in 2005 with my team, on the 'gray' series (three members in a team, all-male or mixed teams only, all members 18 or older with no upper limit for summed ages, competition has at least one and usually only one overnight resting period). A multitude of top threes and top tens in local and regional scale over the years, in all series. One national competition, though back then we scored only among the top 30.
A local 'friendly-competition' (no prizes as such, only fame and glory) cross-country skiing tournament, second place on my age bracket (22-25 year old males), but then again our bracket had only two dozen competitors...
A school badminton tournament when I was 16. Scored on the top 5 the year before and after that.
Oh yeah, and a regional football championship when I was thirteen. I quit football after that, no way I was going to waste almost ten hours a week for practices.