Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Russia's Pavel Kulizhnikov celebrates on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Japan's Nao Kodaira celebrates on a sleigh ride REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Russia's Pavel Kulizhnikov celebrates on a sleigh ride REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Russia's Pavel Kulizhnikov celebrates on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Silver medalist Japan's Tatsuya Shinhama celebrates on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Bronze medalist Netherlands' Kjeld Nuis celebrates on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Japan's Nao Kodaira (C), silver medalist Japan's Miho Takagi (L) and bronze medalist Brittany Bowe of the U.S. (R) pose on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Japan's Nao Kodaira celebrates on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Japan's Nao Kodaira celebrates on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Japan's Nao Kodaira celebrates on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Japan's Nao Kodaira celebrates on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Netherlands' Kai Verbij celebrates after the 2nd Mens 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Second placed Brittany Bowe of the U.S., first placed Japan's Miho Takagi and third placed Japan's Nao Kodaira pose on the podium after the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Russia's Pavel Kulizhnikov and Netherlands' Kai Verbij in action during the 2nd Mens 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Netherlands' Hein Otterspeer in action during the 2nd Mens 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Belarus' Ignat Golovatsiuk and Germany's Joel Dufter in action during the 2nd Mens 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 General view during the 2nd Mens 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 General view during the 2nd Mens 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Russia's Ruslan Murashov in action during the 2nd Mens 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Japan's Yuto Fujino in action during the 2nd Mens 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Estonia's Marten Liiv in action during the 2nd Mens 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Germany's Nico Ihle and Netherlands' Kjeld Nuis in action during the 2nd Mens 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Netherlands' Kjeld Nuis in action during the 2nd Mens 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Netherlands fans in the stadium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Japan's Nao Kodaira celebrates after the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Japan's Nao Kodaira celebrates after the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Austria's Vanessa Herzog and Russia's Olga Fatkulina in action during the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Russia's Olga Fatkulina in action during the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Japan's Nao Kodaira in action during the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Brittany Bowe of the U.S. in action during the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Netherlands' Jutta Leerdam in action during the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Netherlands' Jutta Leerdam waves to the fans after the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Belarus' Hanna Nifantava in action during the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Brianna Bocox of the U.S. in action during the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Argentina's Maria Victoria Rodriguez in action during the 2nd Ladies 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Second placed Japan's Tatsuya Shinhama, first placed Russia's Pavel Kulizhnikov and third placed Netherlands' Kai Verbij pose on the podium after the 2nd Men's 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Germany's Joel Dufter and Netherlands' Hein Otterspeer in action during the 2nd Men's 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 A Japan fan in the stadium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Japan's Tatsuya Shinhama waves to the fans after the 2nd Men's 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Japan's Tatsuya Shinhama reacts after the 2nd Men's 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Finland's Samuli Suomalainen in action during the 2nd Men's 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Russia's Pavel Kulizhnikov (C), silver medalist Japan's Tatsuya Shinhama (L) and bronze medalist Netherlands' Kjeld Nuis (R) pose on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Japan's Nao Kodaira (C), silver medalist Japan's Miho Takagi (L) and bronze medalist Brittany Bowe of the U.S. (R) pose on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Japan's Nao Kodaira celebrates on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Gold medalist Japan's Nao Kodaira celebrates on the podium REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 South korea's Joonsoo Noh in action during the 2nd Men's 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Italy's David Bosa in action during the 2nd Men's 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Japan's Nao Kodaira in action during the 2nd Ladies 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Kazakhstan's Yekaterina Aydova in action during the 2nd Ladies 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 China's Jingzhu Jin in action during the 2nd Ladies 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Netherlands' Jutta Leerdam in action during the 2nd Ladies 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Japan's Maki Tsuji in action during the 2nd Ladies 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Kimi Goetz of the U.S. in action during the 2nd Ladies 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 China's Qishi Li in action during the 2nd Ladies 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 24, 2019 Netherlands' Letitia de Jong in action during the 2nd Ladies 500m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 23, 2019 Netherlands' Kjeld Nuis celebrates on the podium after winning the Men's 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 23, 2019 Second placed Japan's Masaya Yamada, first placed Netherlands' Kjeld Nuis and third placed Russia's Pavel Kulizhnikov pose after the Men's 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 23, 2019 Netherlands' Kjeld Nuis (C) celebrates on the podium after winning the Men's 1000m Sprint alongside second placed (L) Japan's Masaya Yamada and third placed Russia's Pavel Kulizhnikov (R) REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 23, 2019 Germany's Jeremias Marx in action during the Men's 1000m Sprint REUTERS/Piroschka van de Wouw

Speed Skating - ISU World Sprint Speed Skating Championships - Thialf, Heerenveen, Netherlands - February 23, 2019 Norway's Henrik Fagerli Rukke in action during the Men's 1000m Sprint REUTERS/Piroschka van de Wouw