Sergey is the son of Natalya Shubenkova, a former Soviet heptathlete who ranks among the best of all time in the event.[3] Shubenkov decided at the age 16 to make sports his profession and began to train intensively. Alongside his athletic pursuits, he is also studying to obtain a degree in law.[4] He is member of the Russian Armed Forces.[5]
In the 2014 season, Shubenkov competed in the Diamond League series. On 18 May, at the Shanghai Golden Grand Prix, he finished in 4th place – 13.30. On 31 May, taking fifth in the Prefontaine Classic – 13.29. On 11 June, took third place in the ExxonMobil Bislett Games – 13.37 and on 3 July, took second place at the Athletissima – 13.13. He repeated as European champion winning gold at the 2014 European Athletics Championships in Zurich.[citation needed]
In 2015 season, Shubenkov won the gold medal at the 2015 World Championships with a Personal Best of 12.98, he edged out Jamaica's Olympic reigning bronze medalist Hansle Parchment and American Olympic defending champion Aries Merritt who won the silver and bronze medals respectively. His personal best in the event is 12.92 seconds set at Székesfehérvár which is the current Russian record. Commenting about winning the competition, the 24-year-old quoted: "I can't describe what I'm feeling, I don't remember anything about the race. I heard the starting gun and then I opened my eyes and it was finished".[6] Shubenkov finished 3rd in the overall ranking in the men's 110 m hurdles of Diamond League series for the 2015 season and won the last leg of the series in Zurich, beating David Oliver and Orlando Ortega.[citation needed]
In 2021, Shubenkov qualified for the 2020 Summer Olympics held in Tokyo, Japan from July–August 2021. During the warm-ups Shubenkov ruptured an Achilles tendon, forcing him to withdraw from the 110m hurdles event.[7]