Surebet,Upper roi

[nbabettingpicks]

Hello to everyone and good luck


İ am betting( surebetting )with positivebet,They are Giving Tenis ,volleybol for much roi 50-70 roi .

İ am asking for is that roi is when bet after result ,bookies say false odds or?

Which is good roi for bet?
5-10%
10%
20%

 

[bet24]

Everything up than 0%