You are welcome to play your league match at a LAN center or any other computer.
If you plan to play a league match on another ESEA player's computer, you need to submit a league ticket BEFORE the match with a picture or scanned image of both ESEA player's photo IDs (driver's license or government-issued ID). The IDs should be placed side by side in the same picture.
If we are not notified in advance, you risk an account sharing ban and a match overturn.