Sports betting harm among young men is a public health issue. This study of more than 1,800 people who bet on sports in Ontario and Alberta found that men under 30 experience over 50% greater gambling-related harm and 44% higher anxiety compared to the broader sports betting population. More than half drink alcohol while betting, a combination that further increases risk. The evidence points toward a need for policy solutions, including a closer look at advertising frequency, placement during live sports, and promotional offers that reach vulnerable groups. The research was conducted in partnership with Toronto Metropolitan University, the University of Bristol, Brock University, University of Massachusetts Amherst, and University of Calgary, and Greo Evidence Insights.