Marius Berntsen Olsen

Marius Olsen
Personal information
Full name Marius Berntsen Olsen
Date of birth (2001-05-14) 14 May 2001
Height 1.90 m (6 ft 3 in)
Position Centre-back
Team information
Current team
 GKS Katowice
Number 14
Youth career
2013–2016 Clausenengen
2017–2019 Kristiansund
Senior career*
Years Team Apps (Gls)
2020–2022 Levanger 58 (6)
2023–2025 Kristiansund 66 (2)
2026– GKS Katowice 4 (0)
* Club domestic league appearances and goals as of 3 August 2026

Marius Berntsen Olsen (born 14 May 2001), commonly known as Marius Olsen, is a Norwegian professional footballer who plays as a centre-back for Ekstraklasa club GKS Katowice.

He previously represented Levanger and Kristiansund in Norway, making 50 appearances in the Eliteserien for the latter.[1][2]

Club career

Early career and Levanger

Olsen began playing football for Clausenengen before joining the youth set-up of Kristiansund in 2017. He subsequently represented Kristiansund at under-16, under-19 and reserve-team level.[1][3]

In 2020, he moved from Kristiansund to Levanger, initially on loan and later on a permanent basis.[4] Over three seasons in the Norwegian Second Division, Olsen made 58 league appearances and scored six goals for Levanger.[1] He played 62 first-team matches for the club when Norwegian Cup appearances are also included.[1]

Kristiansund BK

Olsen returned to Kristiansund on 29 March 2023, signing a contract through the end of the 2025 season.[4] During his first season back at the club, he made 16 regular-season appearances in the Norwegian First Division and played in all four of Kristiansund's promotion play-off matches.[1] He started both legs of the final against Vålerenga.[5][6] Kristiansund recovered from a 2–0 first-leg defeat by winning the return match by the same score and secured promotion to the Eliteserien after a penalty shoot-out.[7]

Olsen made 23 Eliteserien appearances in 2024 and a further 27 in 2025.[1] On 4 October 2025, he scored his first Eliteserien goal, heading in the winning goal in a 2–1 home victory over local rivals Molde.[8] By the end of his contract, he had made 81 first-team appearances for Kristiansund in all competitions and scored twice.[1][2]

GKS Katowice

After leaving Kristiansund at the end of 2025, Olsen was without a club. In early March 2026, GKS Katowice assessed his fitness and physical condition before deciding to offer him a contract.[9] His signing was announced on 4 March. He joined as a free agent on an initial contract until 30 June 2026, which included an option for two additional years.[10][11]

He made his GKS and Ekstraklasa debut on 12 April 2026, starting in a 3–3 away draw with Lech Poznań.[12][13] Olsen made four league appearances before the end of the season, starting each match.[12][14] On 22 May, GKS activated the extension clause, prolonging his contract by two years, until June 2028.[14][15]

Career statistics

As of match played 17 May 2026[1][12]
Appearances and goals by club, season and competition
Club Season League National cup[a] Europe Other Total
DivisionAppsGoalsAppsGoalsAppsGoalsAppsGoalsAppsGoals
Levanger 2020 Norwegian Second Division 9000——90
2021 Norwegian Second Division 24220——262
2022 Norwegian Second Division 25420——274
Total 58640——626
Kristiansund 2023 Norwegian First Division 16130—4[b]0231
2024 Eliteserien 23030——260
2025 Eliteserien 27140——311
2026 Eliteserien —10——10
Total 662110—40810
GKS Katowice 2025–26 Ekstraklasa 4000——40
2026–27 Ekstraklasa 000000—00
Total 400000—40
Career total 128815000401478
  1. ↑ Includes Norwegian Cup
  2. ↑ Appearances in Norwegian First Division promotion play-offs

References

  1. 1 2 3 4 5 6 7 8 "Marius Berntsen Olsen – profil" [Marius Berntsen Olsen – profile] (in Norwegian). Norwegian Football Federation. Retrieved 4 August 2026.
  2. 1 2 Duda, Mikołaj (4 March 2026). "Dobra passa GieKSy. Półfinał Pucharu Polski i transfer stopera" [GieKSa's good run: Polish Cup semi-final and a new centre-back]. Weszło (in Polish). Retrieved 4 August 2026.
  3. ↑ Betten, Henning (13 April 2023). "– Deilig å være tilbake i hjembyen" [Great to be back in my home town]. Kristiansund BK (in Norwegian). Retrieved 4 August 2026.
  4. 1 2 Almvik, Karoline (29 March 2023). "Olsen til 2025!" [Olsen until 2025!]. Kristiansund BK (in Norwegian). Retrieved 4 August 2026.
  5. ↑ "Kristiansund – Vålerenga". Kristiansund BK (in Norwegian). 6 December 2023. Retrieved 4 August 2026.
  6. ↑ "Vålerenga – Kristiansund". Kristiansund BK (in Norwegian). 10 December 2023. Retrieved 4 August 2026.
  7. ↑ Bucher, Jonas; Hauan, Sander; Brandsnes, Håkon (10 December 2023). "KBK tilbake i Eliteserien etter Vålerenga-kollaps: – Jævlig imponert" [KBK back in the Eliteserien after Vålerenga collapse]. VG (in Norwegian). Retrieved 4 August 2026.
  8. ↑ Vik, Elise Engen (4 October 2025). "Kristiansund snudde kampen – slo erkerival Molde" [Kristiansund came from behind to defeat arch-rivals Molde]. VG (in Norwegian). Retrieved 4 August 2026.
  9. ↑ Janczyk, Szymon (2 March 2026). "Norweg zawita do Ekstraklasy. GKS Katowice finalizuje transfer" [Norwegian set for the Ekstraklasa as GKS Katowice finalise transfer]. Weszło (in Polish). Retrieved 4 August 2026.
  10. ↑ Galiński, Tomasz (4 March 2026). "GKS nie próżnuje po zamknięciu okna. Nowy piłkarz w Katowicach" [GKS remain active after the transfer window closes and sign a new player]. WP SportoweFakty (in Polish). Retrieved 4 August 2026.
  11. ↑ "GKS Katowice ogłasza. Dzień po wielkim triumfie" [GKS Katowice announce signing a day after major triumph]. Przegląd Sportowy (in Polish). Polish Press Agency. 4 March 2026. Retrieved 4 August 2026.
  12. 1 2 3 "Marius Olsen". GKS Katowice (in Polish). Retrieved 4 August 2026.
  13. ↑ Błażewicz, Michał (12 April 2026). "Lech Poznań zremisował z GKS Katowice we wspaniałym widowisku w 28. kolejce PKO BP Ekstraklasy" [Lech Poznań draw with GKS Katowice in an entertaining Ekstraklasa match]. Eurosport (in Polish). Retrieved 4 August 2026.
  14. 1 2 Ziółkowski, Marcin (22 May 2026). "GKS Katowice aktywował klauzulę w umowie obrońcy" [GKS Katowice activate clause in defender's contract]. Weszło (in Polish). Retrieved 4 August 2026.
  15. ↑ "Marius Olsen zostaje w GieKSie" [Marius Olsen stays at GieKSa]. GKS Katowice (in Polish). 22 May 2026. Retrieved 4 August 2026.
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