This study modelled trends in gambling before and during the first phase of the COVID-19 outbreak in Sweden. Specifically, the researchers examined if there was an increase in gambling and whether people who gambled intensely were particularly affected. They also examined if people moved to gamble online on casino games due to the cancelling of sports events. The researchers found that total gambling activity decreased by 13.29% during the first phase of the outbreak (from early March to early April 2020). There was an increase in online casino gambling, but a decrease in online sports betting. There was a decrease in high-intensity gambling, defined as making a deposit over 5,000 SEK in a week. These results suggest no increase in gambling or high-intensity, likely problematic gambling during the first phase of the COVID-19 outbreak in Sweden.