Between 1993 and 1998, a period of 6 years, they were continuously members of Chile's top division although they never finished higher than sixth.
Two years later the club became very popular, resulting in many home sell out crowds in the Estadio Parque Schott that season.
The return to the second division in 1992 owes a great deal to the appointment of manager Jorge Garcés, who brought new tactics and a new training regime resulting in an impressing campaign that year.
Since then, the club struggles to show good results on the pitch with the notable exception of 2003 when they qualified to the Copa Sudamericana, having beating four First Division's teams in a row, only to lose against Universidad Católica on penalties, in the highly controversial second-leg match.
In 2010 the club were relegated to the semi-professional third tier Tercera División, after losing the match for the stay with Deportes Copiapó.
In 2012 the club played at the new third level professional league, the Segunda División, from where they were expelled the same year due to financial reasons.
The club first crest, unveiled in 1983, featured the Osorno Volcano with a football on the top, it was a very simple design, in black and white.
Provincial Osorno played their last Primera B 2007 home game at Estadio Alberto Allaire de Rahue.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.