Kimmann, who will seek to defend his supercross world title tomorrow, had qualified third fastest for the super final in the discipline, behind French duo Sylvain Andre and Joris Daudet.

The Dutchman, though, produced a blistering performance to cross the line in a time of 36.858 seconds to claim the gold.

His closest rival proved to be New Zealand’s Sam Willoughby, with the 2014 world champion ending narrowly adrift in 36.895, ultimately forced to settle for silver.

Latvia’s Maris Strombergs completed the podium positions by clocking 37.100, with the United States’ Nicholas Long missing out on the top three as his time of 37.181 was only good enough to finish fourth.

In the women’s event, Buchanan claimed the title for the first time since 2012 after a narrow victory over The Netherlands’ Laura Smulders.

The 25-year-old Australian completed the course in a time of 41.641, with her rival responding by producing a time of 41.942, which would only secure Smulders second place.

Colombian star Mariana Pajon, competing on her home track, completed the podium positions by finishing in a time of 41.983.

While Smulders was claiming silver in the elite event, her sister Merel earned gold in the women’s junior time trial event in a time of 44.494.

Britain’s Bethany Shriever and The Netherlands’ Ruby Huisman completed the podium positions in times of 44.733 and 44.832 respectively.

The men’s junior title was earned by France’s Mathis Ragot Richard, who finished in a winning time of 38.494.

Australia’s Andrew Hughes secured silver in 38.613, while a time of 38.679 was enough for France’s Charles Borel to claim bronze.