http://www.speedrun.com/the_godfather_original_version/full_game Is it possible to move existing runs from one leaderboard to another? I want to delete the story mode category in the level leaderboard and move the submitted runs there to Fullgame leaderboard where it should be.

right now there's no way to move a run from full game to IL (and vice versa) with the edit form.

You can however just post the runs over and reject/delete the old ones, just make sure when you reject that you make clear that the run has just been moved to avoid confusion.