They have also won several medals on the Grand Prix and the Challenger Series, including winning the 2018 CS Ondrej Nepela Trophy.

[5] In 2005, they attended a training camp under Alexander Zhulin who was preparing Tatiana Navka and Roman Kostomarov for their Olympic gold medal-winning season.

Ilinykh/Katsalapov then won the bronze medal in the individual ice dancing event behind champions Davis/White and silver medalists Virtue/Moir.

[20] On 11 April 2014, Katsalapov and Victoria Sinitsina applied for approval of their partnership from the Figure Skating Federation of Russia (FSFR).

[22] Sinitsina/Katsalapov made their competitive debut at the 2014 Rostelecom Cup, a Grand Prix event in Moscow; they placed fourth in both segments and finished well behind their former partners.

[24] A stress fracture in his foot that kept Katsalapov off the ice in early 2015 recurred in the summer of 2015, keeping the duo out of test skates organized by the FSFR.

[citation needed] Competing in the 2015–16 Grand Prix series, Sinitsina/Katsalapov won the silver medal at the 2015 Skate America, obtaining the highest total technical elements score in the free dance, and then bronze at the 2015 Rostelecom Cup, behind Italians Cappellini/Lanotte.

At their Grand Prix events they first placed fourth at the 2017 NHK Trophy and then they won the bronze medal at the 2017 Skate America.

Sinitsina/Katsalapov started their season at the 2018 CS Ondrej Nepela Trophy where they won the gold medal with a personal best score of 196.42 points.

In late November they won their second Grand Prix silver medal of the season at the 2018 Internationaux de France.

[31] Sinitsina/Katsalapov were medal favourites going into the 2019 European Championships, but encountered issues in the rhythm dance when first Katsalapov and then Sinitsina fell during their twizzle sequence.

"[32] They placed third in the free dance, winning a bronze small medal, with Katsalapov saying that they "fought hard to show the beautiful choreography of our program and avoid any stupid mistakes.

[36] On the Grand Prix, they began at the 2019 Cup of China, where they placed first in the rhythm dance with a new personal best score.

[39][40] Competing at the Final, they unexpectedly placed fourth in the rhythm dance after a number of technical issues, leading him to comment "I made a mistake on the twizzles and realized that level would be definitely reduced.

[42] Competing at the 2020 Russian Championships, Sinitsina/Katsalapov placed first in the rhythm dance despite a slight loss of balance by Katsalapov in his twizzle sequence.

The result was considered a major upset, with Katsalapov remarking "to get anywhere near Gabriella and Guillaume seemed impossible for all the skaters.

[48] Due to Katsalapov recovering from an injury, the team missed the 2020 Russian senior test skates.

[49] Sinitsina/Katsalapov thus began the season at the second stage of the domestic Russia Cup, but had to withdraw midway through the free dance after Sinitsina suffered severe tendon inflammation.

[50] Following recovery, the duo had their first full competition at the 2020 Rostelecom Cup, placing first in the rhythm dance by a wide margin.

[51] They struggled toward the end of their free dance, which Sinitsina said was their "first full run-through", but remained comfortably first in both the segment and overall.

[54] Following a victory at the Russian Cup Final, Sinitsina/Katsalapov were assigned to the 2021 World Championships, to be held without an audience in Stockholm.

Four-time and defending champions Papadakis/Cizeron declined to attend due to their own illness with COVID and lack of training time, leading to much speculation that Sinitsina/Katsalapov were the frontrunners to claim the World title.

[56][57] Their placement combined with the fifth-place finish of Stepanova/Bukin qualified three berths for Russian ice dance at the 2022 Winter Olympic Games in Beijing.

[62] Making their season debut on the Grand Prix at the 2021 NHK Trophy, Sinitsina/Katsalapov won the gold medal.

Speaking after the free dance, Katsalapov credited the crowd for it support, and said that "we want to improve further, but for now we are happy.

[64] The results qualified them for the Grand Prix Final, to be held in Osaka, but it was subsequently cancelled due to restrictions prompted by the Omicron variant.

They unexpectedly placed second in the segment, behind Americans Hubbell/Donohue, after Katsalapov lost a twizzle level and visibly stumbled at one point.

[69] Skating the free dance segment as well, they finished second behind Americans Chock/Bates due to an extended lift deduction, but nevertheless won the gold medal as part of Team Russia.

On 18 March 2022, Katsalapov and Sinitsina appeared at Putin's Moscow rally celebrating the annexation of Crimea from Ukraine in 2014 and justifying the invasion of the country.

[73][74] Sinitsina and Katsalapov's presence at the rally was criticized by their former training partners, Ukrainian ice dancers Oleksandra Nazarova and Maksym Nikitin, who spent weeks caught in the siege of Kharkiv.