You just need to have an account. New users can also participate by opening a new account. To start, users need to place the first F4 competition trades logs into their account and select Competition from the ‘Account Type’ Dropdown menu.
Each competitor will get 100 ‘Competition’ Bitcoins to trade. All traders can use the same leverage and trading rules in effect on the live site, meaning that bitcoins can be split between stock and futures trading with the entire margin available to trade against fiat currency, Stocks, futures and FX trading, all at the same time. Participants will receive interest and be charged trading fees just as if this was a live account. The competition will go one until the 29th of April and everyday users will be able to see if they’ve made it to the Top 10 on the company’s Twitter feed.
http://www.newsbtc.com/2016/04/05/first-global-credit-opens-new-monthly-trading-competition/