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Johan-Sebastian Christiansen

JC

World rank: No. 87 (October 2026)
Rating: 2633 (−23 this month)
Peak rating: 2664 (January 2025)
Title: Grandmaster (2018)
Federation: Norway
Born: June 10, 1998, | title = Grandmaster (2018) (age 28)
FIDE ID: 1512668

A Norwegian grandmaster, born in 1998. Christiansen became an international master in 2015 and a grandmaster in 2018.

He reached a peak rating of 2664 in January 2025.

Career highlights

Grandmaster since 2018
Peak rating 2664 (January 2025)

Johan-Sebastian Christiansen in The Chess Herald

Sep 19, 2026Argentina's 28th Seed Shocks Ukraine at Samarkand

FIDE profile · Wikipedia
Profile last reviewed September 29, 2026. Ratings update monthly from FIDE.