In 1946 ÖSK was promoted to Allsvenskan for the first time after defeating Surahammar in the play-off, however the spell in the top flight lasted for one season only as they were relegated in 1947.

In 1958 Orvar Bergmark played for the club and won silver in the 1958 FIFA World Cup that was hosted by Sweden.

After finishing eighth both in 1963 and in 1964, sixth in 1965 and seventh in 1966, Örebro SK were an established mid table team but in 1967 they won their second bronze medal.

In 1977 Örebro was close to relegation but secured a continued spell in the top flight in the last game of the season.

The club signed star manager Roy Hodgson, who in the last few years had won two gold medals to Halmstads BK and new players were brought in.

A new major attempt to reach Allsvenskan in 1987 including the signing of high-profile coach Rolf Zetterlund ended in disappointment as the club only finished third.

Örebro SK's comeback was successful, and the club immediately established itself as a team subscribing to top positions in Allsvenskan.

In the new 10-team league, the club finished runners up (second to IFK Göteborg only on goal difference) but dropped to third in the Mästerskapsserien between the top six teams.

"Miro" or "Kuba" soon became a big home crowd favourite, and still today the ÖSK fans are called "Kubanerna" as a tribute to the Pole.

Örebro also participated in the UEFA cup for the second time, losing a close tie against KV Mechelen (2–1 on aggregate) in the first round.

The day of the season had a spectacular set up; ÖSK, IFK Göteborg and Malmö FF all had the chance to win Allsvenskan, and the latter two played against each other.

As Örebro SK won comfortably away against Landskrona Bois, the only result that would snatch the title from the club was an IFK Göteborg win.

The club also made an embarrassing third appearance in the UEFA cup, being disqualified after having used too many foreign players in the preliminary round against Avenir Beggen of Luxembourg.

After the 1999 season, Dahlkvist left his position as both coach and technical director after 12 mostly successful years with the club, including the promotion in 1988, the 1994 silver and the medals in 1989, 1990, 1991 and 1997.

As the new millennium started, Örebro SK was believed to yet again challenge for the top of Allsvenskan after signing inter alia head coach Mats Jingblad from IFK Göteborg and former top scorer Niklas Skoog in 2000 and after beating IF Elfsborg in August, taking the club to a third place in the table, many believed they were on the right track.

Promising goalkeeper John Alvbåge and Danish veteran Lars Larsen introduced themselves and soon became favourites of the Örebro crowd.

ÖSK managed to keep most of its squad for the first season in Superettan, except for keeper John Alvbåge who left for Viborg, and Patrick Walker who had previously been with the club returned as head coach.

The home crowd also had big expectations, and in fact booed the team despite a 3–0 win against Bodens BK in the first game of the season.

Veteran Thomas Andersson, who had to leave the pitch because of a bleeding injury, made his last performance for the club.

After a summer signing of home grown talent Abgar Barsom (previously with city rivals BK Forward) and the sacking of coach Patrick Walker, Örebro's form picked up in the autumn and an epic first away win of the season against Elfsborg secured another year in Allsvenskan.

Profiles like Larsen and Barsom left the club, but two other home grown talents were brought back to town, Magnus Kihlberg and Samuel Wowoah.

Boström also showed immediate confidence in the massive talent Nordin Gerzic, who became a regular after having spent most of his first year with the club in 2007 on the bench.

Despite some impressive performances, the team struggled to score and lacked a natural target player in the newly adopted 4–3–3 system.

After earning seven points in three games against the top trio IFK Göteborg, Kalmar FF and Elfsborgs IF, relegation was no longer a threat.

In 2010, Sixten Boström had the opportunity to work with nearly the same squad as in 2009, with a fresh addition of Paulinho Guara on loan from Korean Busan.

Despite a couple of unexpected losses at home in the beginning of the season (against Mjällby and Gasis), there was never a doubt that Örebro would be a top team.

Although Örebro wanted to extend Ajdarevic's contract, he received an offer he could not refuse from IFK Norrköping and thus left the team at the end of the season.

Despite often scoring the opening goal, Örebro SK entered into three long losing streaks and ended up in a disappointing 12th spot of allsvenskan, an early exit from the Europa League qualification campaign (against Sarajevo) and finally losing the semifinal of the national cup (against cup and league champions Helsingborgs IF).

The initially strong ÖSK squad was diluted throughout the season: centre Andreas Haddad and right fullback Patrik Anttonen missed most of the season through injury, and during summer arguably the two best players of the team, first Mikael Almebäck (to FC Bruges) and Alejandro Bedoya (to Glasgow Rangers) left for modest transfer fees (as their contracts were soon to expire).

[3] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.