After a few days of betting, player called "zhent" managed to somehow win 200 BTC at betking.io What are your thoughts how is it possible some people manage to win so much? Just a matter of luck or is it the bankroll that is the key? It's very difficult to win with a very limited bankroll and it's coming from experience

A post of the winner on BetKing thread: https://bitcointalk.org/index.php?topic=910134.msg13880555#msg13880555