Joo had his first international success at the 2010 Short Track Junior World Championships in Taipei . There he won a gold medal with the relay. In the Speed Skating World Cup he started for the first time at the beginning of the 2011/12 season in Chelyabinsk and finished fourth in the team pursuit and in the B group over 5000 m. At the following World Cup in Astana , he achieved his first podium finish in the World Cup with third place in the mass start. In the further course of the season he took second place three times in the team pursuit and eighth place in the mass start World Cup at the end of the season. At the individual distance world championships in 2012 in Heerenveen , he achieved 23rd place over 5000 m and seventh place in the team pursuit. In the following season he again achieved eighth place in the mass start World Cup. He finished second in the mass start in Heerenveen and also achieved second place twice and third place once in the team pursuit. At the individual distance world championships in Sochi in 2013 , he won the silver medal in the team pursuit and came 20th over 1500 m. At the 2013 Winter Universiade in Trentino , he won the bronze medal in the 1500 m and the gold medal in the all-around event. After two third places in the team pursuit at the beginning of the 2013/14 season in Calgary and Salt Lake City , he came second in the team pursuit in Berlin . At the season highlight of the 2014 Winter Olympics in Sochi, he won the silver medal in the team pursuit. He also achieved 29th place over 1500 m. In November 2015, he finished second in the team pursuit in Calgary. At the individual distance world championships in Kolomna in 2016 , he was fifth in the team pursuit. After third place in Harbin and second place in Nagano in the team pursuit at the beginning of the 2016/17 season, he finished 11th in the mass start at the 2017 Individual Distance World Championships in Gangwon .
Personal bests
500 m 37.03 sec. (installed on January 21, 2015 in Seoul)
1000 m 1: 10.82 min. (installed on September 10, 2016 in Calgary)
1500 m 1: 44.55 min. (installed on November 20, 2015 in Salt Lake City)
3000 m 3: 50.81 min. (installed on October 11, 2014 in Calgary)
5000 m 6: 27.77 min. (installed on November 24, 2012 in Kolomna)
10,000 m 13: 35.68 min. (installed on December 2, 2012 in Astana)
Note: This article places the family name before the person's first name. This is the usual order in Korean. Joo is the family name here, Hyong-jun is the first name.
South Korea
