The leaderboard only shows players who have at least one wrong prediction. As soon as you get one wrong, your name will appear on the list.
A few multi-masters back, i got the first 7 picks right and couldn't see my name too, i thought it was a glitch, it popped up immediately on my first wrong prediction. Proof.
Thanks for that explanation. Didn't think of that but it is sort of logical. While you have all correct outcomes you are in the run for main reward and it doesn't really matter what others have.
@Steve
This is not a glitch then but it is something that would work better if tweaked a little. Leaderboard should show those with all correct scores as well. There could be a situation where few guys have 10+ correct scores and are fighting for the share of second prize and then main prize just goes to the one with all correct scores and they get nothing. The problem is nobody knew there was a person with all correct scores and those players would probably feel cheated. Think about it.