2015-present (as OBOS-ligaen)
2014 (as 1. divisjon)
2005-2013 (as Adeccoligaen)
1991-2004 (as 1. divisjon)
1963-1990 (as 2. divisjon)
1948-1951 (as 1. divisjon)
|Number of teams||16|
|Level on pyramid||2|
|Relegation to||2. divisjon|
|Domestic cup(s)||Norwegian Cup|
|Current champions||Tromsø (2nd title) |
|Most championships||HamKam, Lyn and Sogndal (6 titles)|
|TV partners||Discovery Networks Norway|
|Current: 2020 1. divisjon|
1. divisjon or OBOS-ligaen (name sponsor is property developer OBOS) is the second-highest level of the Norwegian football league system. Each year, the top finishing teams in the 1. divisjon are promoted to the Eliteserien, and the lowest finishing teams are relegated to 2. divisjon.
1. divisjon was previously known as 2. divisjon (1963-1990) and replaced regional league Landsdelsserien (1951-1962) after the latter was dissolved after the 1961-62 season. The second tier was also prior to Landsdelsserien known as 1. divisjon (1948-1951). Formally, it was a semi-professional league. The tier has been restructured many times and consists of 16 teams at present.
Between 1963 and 1990, the second highest level in Norwegian football was named 2. divisjon. In 1991, due to rebranding of the top flight level in 1990, it was renamed to its initial name; 1. divisjon. 1. divisjon has been the name of this level ever since, except for periods when the league has had a sponsor-affiliated name. Between 2005 and 2013 the level was known as Adeccoligaen and from 2015 to 2020 the name is OBOS-ligaen.
In the 1997 season, 1. divisjon merged from two divisions consisting of 12 teams each, to only one with 14 teams. In the 2001 season, 1. divisjon expanded from 14 to 16 teams. Only two teams were relegated in the 2000 season. In 2009, the number of teams in Eliteserien expanded from 14 to 16. Therefore, only one team was relegated to 1. divisjon, whilst three teams were promoted to Tippeligaen.
Since 2012 four teams, finishing 3rd to 6th, has qualified for promotion play-offs. In the 2017 season the relegation format was changed. The previous format where four teams were relegated was replaced with a format with two relegation spots and one relegation play-off spot.
The league is contested by 16 teams. During the course of a season, each club plays the others twice, home and away, for a total of 30 games for each club, and a total of 240 games in a season. The season starts in April and lasts until early November. The top two teams will be promoted to Eliteserien, while the teams placed from third to sixth place will play a promotion-playoff against each other to earn the right to play a two-legged game against the 14th-placed team in Eliteserien to win promotion. The bottom two teams will be relegated to the 2. divisjon known as PostNord-ligaen, and the team in 14th place will play a two-legged playoff against the play-off winner among the two-second-placed teams in 2. divisjon.
|From||To||Group(s)||Teams||Match-weeks||Season Start||Season End||Dir. promoted||Promotion play-off spots|
|1972||1975||2 + 2 districts||35-36||10-14||3|
|1976||2 + 1 district||28||14-18|
The following 16 clubs are competing in the 2020 1. divisjon:
|Club||Finishing position last season||Location||Stadium||Capacity|
|Grorud||Promoted||Oslo||Grorud Arctic Match||1,700|
|Lillestrøm||Relegated (lost qualification to Start)||Lillestrøm||Åråsen Stadion||12,500|
|Ranheim||Relegated (finished 16th in Eliteserien)||Trondheim||EXTRA Arena||3,000|
|Sandnes Ulf||9th||Sandnes||Sandnes Stadion||4,969|
|Stjørdals Blink||Promoted||Stjørdal||M.U.S Stadion|
|Tromsø||Relegated (finished 15th in Eliteserien)||Tromsø||Alfheim Stadion||6,801|
|Øygarden||7th (as Nest-Sotra)||Sotra||Ågotnes gress||1,500|
Ahead of the 2015 season, a six-year deal was agreed with the housing cooperative OBOS. In the period from 2015 to 2020, 1. divisjon will be named OBOS-ligaen.
|1948-1951||No sponsor||1. divisjon|
|2014||No sponsor||1. divisjon|
1. divisjon has a number of official partners and suppliers. The official ball supplier for the league is Umbro who on 20 February 2020 signed the first ever contract to deliver official balls for OBOS-ligaen. The two-year deal began from the start of the 2020 season.
From 1963 to 1990, the second tier in Norwegian football was named 2. divisjon. Until 1996, the 1. divisjon teams was split in two groups. This statistics shows the winning cubs, runners-ups, play-off teams, top goal scorer and the league's average attendances starting with the first one-group 1. divisjon season in 1997. Teams in bold won the promotion play-offs and were promoted to Eliteserien.
|Season||Winner||Runner-up||Promotion play-offs||Top scorer||Avg. att.|
|2020||Tromsø||Lillestrøm||Sogndal, Ranheim, Åsane and Raufoss||19 - Henrik Udahl (Åsane)|
|2019||Aalesund||Sandefjord||Start, KFUM Oslo, Kongsvinger and Sogndal||19 - Pontus Engblom (Sandefjord)||1 434|
|2018||Viking||Mjøndalen||Aalesund, Sogndal, Ullensaker/Kisa and Nest-Sotra||21 - Tommy Høiland (Viking)||1 711|
|2017||Bodø/Glimt||Start||Mjøndalen, Ranheim, Sandnes Ulf and Ullensaker/Kisa||28 - Kristian Fardal Opseth (Bodø/Glimt)||1 422|
|2016||Kristiansund||Sandefjord||Jerv, Sandnes Ulf, Kongsvinger and Mjøndalen||26 - Pontus Engblom (Sandnes Ulf)||1 495|
|2015||Sogndal||Brann||Kristiansund, Hødd, Jerv and Ranheim||17 - Pontus Engblom (Sandnes Ulf) and Robert Stene (Ranheim)||1 998|
|2014||Sandefjord||Tromsø||Mjøndalen, Kristiansund, Bærum and Fredrikstad||19 - Pål Alexander Kirkevold (Sandefjord)||1 376|
|2013||Bodø/Glimt||Stabæk||Hødd, Ranheim, Hamarkameratene and Mjøndalen||18 - Jo Sondre Aas (Ranheim)||1 453|
|2012||Start||Sarpsborg 08||Sandefjord, Mjøndalen, Bodø/Glimt and Ullensaker/Kisa||20 - Martin Wiig (Sarpsborg 08)||1 330|
|2011||Hønefoss BK||Sandnes Ulf||NFF removed the play-offs ahead of the season||18 - Vegard Braaten (Alta)||1 186|
|2010||Sogndal||Sarpsborg 08||Fredrikstad, Løv-Ham and Ranheim||17 - Marius Helle (Bryne)||1 544|
|2009||Haugesund||Hønefoss||Kongsvinger, Sogndal and Sarpsborg 08||24 - Thomas Sørum (Haugesund)||1 271|
|2008||Odd Grenland||Sandefjord (2nd) and Start (3rd)||Sogndal||22 - Péter Kóvacs (Odd Grenland)||1 984|
|2007||Molde||Hamarkameratene||Bodø/Glimt||23 - Kenneth Kvalheim (Notodden)||1 726|
|2006||Strømsgodset||Aalesund||Bryne||19 - Mattias Andersson (Strømsgodset)||1 981|
|2005||Stabæk||Sandefjord||Moss||27 - Daniel Nannskog (Stabæk)||1 388|
|2004||Start||Aalesund||Kongsvinger||18 - Paul Oyuga (Bryne)||1 696|
|2003||Hamarkameratene||Fredrikstad||Sandefjord||19 - Markus Ringberg (Fredrikstad)||1 656|
|2002||Tromsø||Aalesund||Sandefjord||18 - Morten Gamst Pedersen (Tromsø)||1 174|
|2001||Vålerenga||Start||Hamarkameratene||18 - Bala Garba (Haugesund) and Marino Rahmberg (Raufoss)||1 490|
|2000||Lyn||Strømsgodset||Sogndal||25 - Jostein Flo (Strømsgodset)||775|
|1999||Haugesund||Bryne||Start||17 - Anders Blomquist (Haugesund)||1 033|
|1998||Odd Grenland||Skeid||Kjelsås||18 - Caleb Francis (Bryne)||741|
|1997||Vålerenga||Moss||Eik-Tønsberg||16 - Espen Musæus (Vålerenga)||1 169|