Dmitrii Kozlovskii

Competing at the 2020 Russian Championships, Boikova/Kozlovskii placed second in the short program, three points behind Tarasova/Morozov, who also skated a clean program. Boikova/Kozlovskii then won the free skate, winning their first Russian national title by 0.47 points, an occasion he called "something special and memorable."

At the 2019 Russian Championships, the pair won the bronze medal after placing third in both programs. Boikova's skating boots had broken down following the French Grand Prix, requiring her to break in new boots in short order.

Assigned to the 2019 European Championships, Boikova/Kozlovskii placed fourth in the short program, 0.12 points behind Nicole Della Monica / Matteo Guarise of Italy. They earned their first score above seventy points. In the free skate, Kozlovskii erred on their three-jump combination, but they otherwise skated cleanly, placing third in the free skate and winning the bronze medal overall with a score 0.14 points ahead of Della Monica/Guarise. Kozlovskii referred to the result as "a miracle. Fate has forgiven me today. It gave me a scare and then it has saved me." Boikova said the two aimed to support each other whenever they made mistakes.

Boikova/Kozlovskii concluded the season at the 2019 World Championships, placing sixth in the short program after losing levels on their death spiral and step sequence. They skated cleanly in the free program, placing sixth there as well, and sixth overall. Boikova remarked "We did our best, and now we can relax and go to Disneyland tomorrow."

After winning the silver medal at the 2019 Shanghai Trophy, Boikova/Kozlovskii began the Grand Prix at 2019 Skate Canada International. They set a new personal best in the short program, narrowly taking the lead over Canadian national champions Moore-Towers/Marinaro and Russian national champions Tarasova/Morozov. They won the free skate as well by a wider margin, for their first Grand Prix gold medal. Competing next at the 2019 Rostelecom Cup, they won the short program with a score of 80.14, only the second team to score above eighty points at that point in the season. They won the free skate with another new personal best, beating Tarasova/Morozov for the second time that season.

Boikova/Kozlovskii's results qualified them to the Grand Prix Final in Torino, where they placed second in the short program behind reigning World Champions Sui/Han. The free skate was less successfully, marked by errors on jump and throw elements as well as their final lift, resulting in them placing fifth in that segment and dropping to fourth overall. Kozlovskii remarked "We are not happy about the skate, but what can I do? It’s the sport. It happens and we will work hard to make sure it doesn’t happen again."

At the 2018 Russian Championships, they placed fifth on the senior level and fourth at the junior event.

Boikova/Kozlovskii started their season by winning two medals on the 2018–2019 ISU Challenger Series. First they won the silver medal at the 2018 CS Lombardia Trophy and then the bronze medal at the 2018 CS Finlandia Trophy. In late October Boikova/Kozlovskii made their Grand Prix debut at 2018 Skate Canada where they placed fourth with a personal best score of 196.54 points. In late November they competed at the 2018 Internationaux de France where they won the bronze medal.

In March, Boikova/Kozlovskii won silver at the 2017 World Junior Championships in Taipei, Taiwan. Ranked first in the short program and fourth in the free skate, they finished second to Australia's Ekaterina Alexandrovskaya / Harley Windsor with a deficit of 2.05 points.

Boikova/Kozlovskii won two medals on the 2017 JGP series. First they won a silver in Riga, Latvia and then a bronze in Zagreb, Croatia. With these results they qualified to the JGP Final where they placed fifth.

In October 2017 Boikova/Kozlovskii competed at their first international senior event, the 2017 CS Minsk-Arena Ice Star, where they won the gold medal with their personal best score of 191.58 points. A month later they skated their second Challenger event at the 2017 CS Warsaw Cup where they won the silver medal.

Boikova/Kozlovskii's international debut came in September 2016 at a Junior Grand Prix (JGP) event in Russia, where they won the silver medal. At their next JGP assignment, in Germany, they placed fourth. These results qualified them to the 2016–17 Junior Grand Prix Final, held in December in Marseille, France. They won the bronze medal with a personal best score of 159.72. Later in the same month, they finished sixth competing on the senior level at the Russian Championships. They won the junior national title in February 2017.

Following a brief partnership with another skater, Kozlovskii teamed up in November 2015 with Aleksandra Boikova, who had just switched from singles. Artur Minchuk in Saint Petersburg became the pair's coach.

Kozlovskii started learning to skate in 2004. After training as a single skater in Alexei Mishin's group, in July 2015 he joined Tamara Moskvina's group to learn pair skating.

Dmitrii Eduardovich Kozlovskii, formerly Nekhviadovich, (Russian: Дмитрий Эдуардович Козловский (Нехвядович) , born 23 December 1999) is a Russian pair skater. With his skating partner, Aleksandra Boikova, he is the 2020 European champion, 2019 European bronze medalist, 2019 Skate Canada champion, and 2020 Russian national champion. Earlier in their career, they won silver at the 2017 World Junior Championships and bronze at the 2016–17 Junior Grand Prix Final.

Kozlovskii was born on 23 December 1999 in Saint Petersburg, Russia. He has also used the surname Nekhviadovich.