I am ranked 22nd, far from the top few 
You are close to that Lol
There is a constant problem in this demo.
1- #1 can't win $ 4,000 without cheating.
2- My buy orders haven't been processed. The last bottom is $ 196.02
Hi buddy, don't worry about cheaters, all of the users that use multiple accounts will be banned from the contest. For the order issue, do you mean that your order hasn't completed even the price of your buy order is higher than the lowest sell order?