How does pick'em work?

Pick'Em is in its name: from the group stage of Worlds onward, you basically play prediction on where each team will turn out in their respective Group Stage and Knockout Stage in two intervals. The catch is: once you lock in and the deadline is past for each interval, you cannot change your predictions.

Winning the grand prize is a miracle and a half as you need to get EVERY SINGLE PREDICTION RIGHT! Past pick'em winners and players who made it far took some madman-level predictions. Last year's pick'em only had 1 single player left by quarterfinals.