Betting on sports is very risky. Sometimes you win, sometimes you lose. This is NOT a long-term strategy to make you money, no matter how lucky you are.
I think this is the time when you are going to evaluate yourself in your gambling strategies and how you are going to come up with the right formula for you. It's like trading, it's hard but somehow, you could make it work if you have the right attitude and risk assessment. I am offering a private service that allows you to bet on sports and win money no matter what the outcome. By subscription to this service you get multiple high quality signals in crypto-only casinos (for which no verification is needed). Each of these signals allows you to make a few % return on your investment with no risk.
So you will have multiple signals in one bet? You included in your subject that it's Betting Arbitrage in which you could try to use multiple sports betting casinos and taking advantage of some spread. Isn't that right?Mentioning sports betting is very risky while at the end your signals will sure returns with no risk involved. 
I think the no risk involved is the part where you use the Arbitrage opportunity that you could have.Quote from: James Chen https://www.investopedia.com/terms/a/arbitrage.asp
What is Arbitrage
Arbitrage is the simultaneous purchase and sale of an asset to profit from an imbalance in the price. It is a trade that profits by exploiting the price differences of identical or similar financial instruments on different markets or in different forms. Arbitrage exists as a result of market inefficiencies and would therefore not exist if all markets were perfectly efficient.
Arbitrage is the simultaneous purchase and sale of an asset to profit from an imbalance in the price. It is a trade that profits by exploiting the price differences of identical or similar financial instruments on different markets or in different forms. Arbitrage exists as a result of market inefficiencies and would therefore not exist if all markets were perfectly efficient.