Arb

ARB – the term denoting that a forecaster can take advantage of difference in the odds in different betting shops and, having put all possible outcomes, get a guaranteed win. At the same time, income can fluctuate within 1% -15% of a bet. The game on ARB attracts more and more forecasters. However, such a strategy may not yield the expected fruits. The barrier is dynamic changes in odds, cancellation of bets or nuances in the rules of individual bookmakers.

For example, one of bookmakers estimated a victory of the first tennis player with the odds of 2.05, and a triumph of his/her opponent – by the odds of 1.8. Another bookmaker received other information from analysts and gave on the second sportsman the quotation of 2.05. In this case, a forecaster gets ARB. Putting on the wins of both tennis players the same amount in different betting shops (on the first with the odds of 2.05 and on the second with the same quotation, but in the other office); a player receives a guaranteed win at any outcome of a match. V = 2.05 * S-2 * S = 0.05 * S, where V is a net profit, and S is the sum of a bet per outcome.