 At the regional level, they possess the most number of championship titles, they solely held it from 1993 to 2002 and from 2004 to 2009 when it became shared with GD Sundy, two more were shared, Porto Real in 2014 and Sporting Príncipe in 2016.In late-September 2017, Os Operários finally won another regional championship title in 13 years and thus became the club with the most number of regional titles (last time exceeding the totals once shared by Porto Real, Sporting Príncipe and Sundy).The club will make their next national appearance in 13 years.