Beat Ocarina of Time in about 10 hours.
I also took place in a FFT speed-run tournament. It was over a weekend at a friend's house, there were 6 of us and we each put $20 into the jackpot. The stipulations were that everyone started at the same and you had to complete every possible side-quest in the game (getting Beowulf, doing the Deep Dungeon, getting Cloud and his Materia Blade, etc). It was years ago but I think I ended up winning by beating it in 20 something hours. I started off behind since I chose to level/job grind a lot more than everyone else before getting to the Wiegraf fight at the end of Chapter 3. Everyone else got stuck there, two guys even had to load up a way earlier save and set themselves back quite a bit. In the end I ended up winning by one battle, I was fighting Altima while the next closest guy was fighting the last Zodiac monster.