English Most bettors are extremely negative toward surebets and surebeters. At the slightest suspicion, a professional player may cut the limits—for example, set a maximum bet of $1 or block an account completely.
How do bookmakers understand that they have a surebeter, and not an ordinary player? Fractional bet amounts, for example $ 20.58, regular withdrawals of money from the bookmaker's account, bets on minor-division matches and youth tournaments. In addition, bookmakers themselves sometimes organize "traps"—they display deliberately high odds for an event, and then everyone who bets on it is put on their "black" lists.