[13][14] He set a new Nordic Record in the event at the latter championship with a time of 59.05 seconds during the qualification heats and became the first Norwegian to swim the distance in less than 1 minute.

[3] Following his death, tributes were made by friends and swimming rivals Cameron van der Burg and Kosuke Kitajima.

[10] The autopsy also revealed that Dale Oen had suffered a series of small heart attacks in the months prior to his death, which went unrecognized.

[32] The only conventional risk factors Dale Oen had for heart disease were a "slightly elevated cholesterol level" and the fact that his grandfather died suddenly at 42, of an unknown cause.

[34] Italian swimmer Fabio Scozzol dedicated his gold medal in the 100 m breaststroke at the 2012 European Championships to Dale Oen.

[35] At the 2012 Summer Olympics in London, South African swimmer Cameron van der Burgh and Hungarian swimmer Dániel Gyurta, who won the men's 100 m breaststroke and the men's 200 m breaststroke respectively and both set new world records, dedicated their swims and medals to Dale Oen due to their close friendship with the Norwegian.

[41] Among others, then-Norwegian prime minister Erna Solberg held a speech at the opening of the pool, naming Dale Oen as "perhaps the greatest athlete of the country.

[43] The unveiling was attended by a crowd of one thousand people, which included then-Mayor of Bergen Trude Drevland and Dániel Gyurta, who placed a flower wreath on behalf of the international swimming community.