At the 2008–09 ISU Junior Grand Prix event in Belarus, he became the first skater from Kazakhstan to win an International Skating Union competition.

He was a member of the Astana Presidential Sports Club[2] and the political party "Nur Otan", which ruled the country since 1991.

[7] In 2002, his team won the silver medal at the World Choir Games, held in Busan, South Korea.

[8] Ten moved with his mother to Moscow, Russia, in 2004 while his father and older brother, Alexei, remained in Kazakhstan.

[7] The head judge, Alexander Kogan, invited him to another competition in Odintsovo, Moscow region, where Ten met coach Elena Buianova (Vodorezova).

[8] Ten began training camp with her at CSKA Moscow and was later invited to join her group full-time.

[13] Ten finished the season at the Haabersti Cup in Tallinn, Estonia, where he won the junior men's event by 16.34 points ahead of silver medalist Viktor Romanenkov.

He won both segments of the competition to win the gold medal by 22.59 points over silver medalist Gordei Gorshkov.

[22] Because of his placement at the World Junior Championships, Ten earned Kazakhstan the right to send one men's entry to every JGP event for the following season.

[25] By placing 4th in his first event, Ten entered into contention to potentially qualify for the Junior Grand Prix Final.

[26] In the free skate, Ten landed six triple jumps to place 2nd in that segment of the competition by 3.88 points behind Yang Chao.

[52][53] After he made his Senior debut in the 2009–10 Grand Prix series, where he was assigned to the 2009 Cup of China and the 2009 Skate Canada International.

[61] Ten won the gold medal at the 2011 Asian Winter Games with a first place in the short program and third in the long.

[64] At the 2013 World Championships, he scored a personal best of 91.56 points in the short program—second only to Patrick Chan—and received a small silver medal for the segment.

[65] In June 2013, Carroll and Ten moved to the Toyota Sports Center in El Segundo, California.

[70][71] Ten was named Breakthrough of the Year by the Agency of Sport and Physical Education of Kazakhstan and awarded a car by the mayor of Almaty.

[74][76] At the Trophée Éric Bompard competition, he placed first in the short program, then won bronze after the free skating.

[78] At the 2015 Four Continents Championships in Seoul, South Korea, Ten set personal best scores of 97.61 and 191.85 points in the short program and free skating, respectively.

He placed first in both segments of the competition and won the title with total points of 289.46, the third highest score at an ISU championship at the time.

[79] Ten planned to start the season at the 2015 Skate Canada Autumn Classic, but had to withdraw due to an injury.

[81] At the 2015 Trophée Éric Bompard, he placed 4th at the short program segment of the competition, before the event was cancelled due to the November 2015 Paris Attacks.

[87] He placed tenth at the Asian Winter Games, and ended the season with a sixteenth-place finish at the World Championships.

[88] During the summer of 2017, Ten worked with Benoît Richaud and David Wilson to prepare for his Olympic season programs.

[91] He was going to reuse his free skating from the 2017–2018 season, after rearranging it in the updated ISU format (30 seconds shorter) with David Wilson.

[93] By 2015, he began working on his MBA program (Oil and Gas) at the Business School of the Kazakh-British Technical University.

Celebrities who have modelled for or collaborated with him include Dinara Baktybayeva, Aissulu Azimbayeva, Aliya Telebarisova (Kazakhstani actresses), Sabina Altynbekova, and Serik Sapiyev.

[95] Ten was stabbed in the thigh on 19 July 2018 in Almaty by two carjackers who were attempting to steal his car mirrors, which were worth about 68 U.S.

"[99] United States figure skaters Adam Rippon, Alex Shibutani,[100] Gracie Gold, Ashley Wagner, and Mirai Nagasu, who used to train with Ten, also paid tribute to him,[99] along with several other international figure skaters including Patrick Chan,[101] Tessa Virtue,[102] Scott Moir,[103] Evgenia Medvedeva,[104] Adelina Sotnikova, and many others.

Ten's coffin was taken to the Baluan Sholak Sports Palace, where friends, family, and members of the public gathered to pay their respects.

The two-meter bronze pedestal depicts one of the moments of the skater's final performance at the 2014 Olympic Games in Sochi.