Go to
https://challonge.com/4lsyscih and click the big "Create a Prediction Button"
- no signup or anything required, easy to fill out.
You can view other people's predictions by hitting Predictions and there is a Leaderboard so we can see who got the most picks right when this is done.
When you create the prediction just put some junk chars in for the email address field, but name your prediction "<Username>'s Prediction" so we know who's it is
Or post yourself here but this is way faster and already set up for you.