In this section, you will find our tennis surebets. An ARB is a bet which you cannot lose. An surebet is calculated by the odds offered by betting providers on tip X, tip1 and Tip2. With an surebet, the stakes and the odds are distributed so that you make a safe profit, no matter how the game ends. This case arises when the odds are perceived differently by different betting providers. We calculate these differences automatically to offer you a 100% safe surebet.