Select tank from the list and press Start button next to it.
Once start button clicked it will change to track progress button, and it will show you starting values (# of games and number of piercing shots up to date) and # of games and penetrating shots on this tanks during the contest.
There will be refresh Standings button that will allow you to get latest games results.
System will automatically retrieve your stats at the end of time period. If you have over 50 games you will get a chance to win.
You can select any number of different tanks (form the allowed list) tanks to participate in the contest. Results on the best tank will be included into the contest.
Standings will be available. (this might not be up to date, it will display only participants that logged in and tracked their progress)