OK, but this game finished just today:http://warlight.net/MultiPlayer?GameID=4756568
It started 15 days ago, i guess than NoobSchool had lower level than, but today he had 52 when game finished.
But Warlight wiki does not say about when levels are taken, and the only point about it is not in past tense:
"The levels of the players who didn't win the game. Defeating a player who is equal level to you gives a base of 5,000 points. Defeating a player who is 10 or more levels above you gives a base of 10,000 points. Defeating a player who is lower level than you gives fewer than 5,000 points, depending on their level. "
Edited 9/16/2013 19:08:56