Sports And Crime

Franciso Mejía looks at the relationship:

Violence after frustration [in soccer matches] seems to be quantitatively important: robberies rise 28% compared to the previous week and assaults 26%, although these results are short termed: one hour. On the other hand, violent property crime decreases after an unexpected win: robberies fall by 44% compared to the previous week.

The same goes for American football:

A decade ago, Walter Gantz showed that the presence of an NFL game did slightly increase the number of domestic violence reports.  The results were stronger when there were upsets and the number of domestic violence cases was inversely proportional to the point-spread.

These studies should probably be viewed with skepticism considering similar studies have been greatly exaggerated.