This will be the 20th edition of the championships (including the two editions that were renamed the ‘IAAF World Road Running Championships’) and Denmark is the 16th country to host the World Half Marathon Championships. The event is being held in Scandinavia for just the second time ever, 20 years after Oslo hosted it. It’s also just the second time in the history of the championships that it is being held in spring. Brussels in 2002 was the only other World Half Marathon Championships that was held at this time of year.