Halfdan Nielsen

Halfdan Nicolaus Nielsen (26 March 1874 – 21 June 1952) was a Norwegian speedskater.

He was the second registered world record holder in 10,000 m, when he improved Oskar Fredriksen's record in Stockholm in 1893.[1]

  1. ^ "Speed Skating. Complete history list of World Records" (PDF). International Skating Union. Archived from the original (PDF) on 5 February 2012. Retrieved 18 February 2009.