Sports betting 토토사이트 is the activity of placing wagers on predicting the results of sporting events. As of 2018, sports betting represented approximately 18% of the $449 billion global gaming market, as measured by gross gaming revenues, or “GGR”. In terms of the sports upon which wagers 스포츠토토 are placed, popularity varies significantly from region to region. Goldman Sachs expects the online sports betting market to grow 7.1% per annum from 2018 to 2022.