Guðmundur Kjartansson

In August 2020, he won the Icelandic Chess Championship for the third time after managing to hold Hjörvar Steinn Grétarsson to a draw in the final round (whereas the other tournament leader Helgi Grétarsson lost his game).^[2][3][4]

In May 2021, he finished third in the national championship, behind winner Hjörvar Steinn Grétarsson and runner-up Jóhann Hjartarson.^[5]

In May 2023, Guðmundur, Vignir Vatnar Stefansson and Hannes Stefánsson scored 8.5/11 and tied for first place in the national championship. The trio played against each other in blitz tiebreaks, and Guðmundur ultimately lost to Vignir Vatnar Stefánsson.^[6]