There are many events to participate in every month. Here are some of them:
Tucson Pinball League, once a month: https://tucsonpinballleague.wordpress.com/home/
Tucson Superleague. Month long high score contest on select machines. Finals held on the First Wednesday of the following month: http://www.tucsonpinball.com/tucson-superleague/
Tucson Bi-Weekly, twice a month. D&D monthly, once a month. Both events can be found here: https://www.ifpapinball.com/calendar/
Come play, meet other players, and have fun.