Soroptimist International of Rio Vista sponsors or takes part in several events throughout the year. The following list is somewhat fluid because events can change from year to year.

February – Princess Ball
The club, in partnership with Rio Vista Lions, hosts the Princess Ball where girls age 5-12 attend a magical dinner and dance with an important male in their lives.

The club hosts a national film festival of short films by, for, and about women.

April – Sheep Dog Trial
The club is a sponsor of the McCormack Ranch Sheep Dog Trial, a three-day event in the Montezuma Hills of Rio Vista where world class sheepdogs and their handlers compete on a classic Hill Farm trial course.

August – Hog August Bites
The club is dormant over the summer but our snazzy racer and a young female driver are usually entered in the Downhill Race.

October – Rio Vista Bass Derby
The club often has a parade entry and, once again, we usually have an entry in the Downhill Race.

October – Western Railway Museum Pumpkin Patch
The club typically holds a bake sale the third weekend in October at this event sponsored by the Western Railway Museum.