Bookmaker Arbitrage

An acquaintance of bettors at bookmakers told how they made money out of thin air a couple of years ago. The scheme is extremely simple: They bet money on sweepstakes sites, where the bets were accepted in real time. The essence is this, that there was a delay, for example, between a goal scored and the update of the results on the website in 5-20 seconds and it was necessary to have time to put the maximum amount of money in this period and collect your guaranteed winnings. The sums were earned very large and almost from 100% win.. They worked as a team and bought apartments with cars. Now he says nothing like that :( Here is an arbitrage :))