In-play sports betting allows people to make bets while a sports match is ongoing (e.g., which player will score next). In-play sports betting may be a particularly harmful form of gambling. The researchers examined demographic, psychological, and gambling-related characteristics of 920 Canadian adults who bet on sports. They found that people who made in-play bets were more likely to experience various psychological and gambling-related difficulties compared to people who made single-event or traditional sports bets.