2010–12 Belak turned senior in 2010; as a result she started competing on the
FIG World Cup circuit primarily as a vault specialist. She made her senior debut at the Cottbus World Cup where she finished sixth. She next competed in
Doha where she finished fifth. She made her first podium by winning gold at the
Maribor World Cup held in her home country of
Slovenia. Next she competed at the Moscow World Cup where she finished sixth. In October Belak competed at the
Ostrava World Cup where she finished fourth. The following month she competed in
Osijek where she finished seventh. She ended the season competing in
Stuttgart but she failed to qualify to the vault final when she finished 13th in qualification. In 2011, Belak did not compete for the first half of the year. She returned to competition in September at the
Maribor World Cup where she placed second on vault behind
Valeria Maksyuta of Israel. She next competed at the
Osijek World Cup where she placed sixth. She ended the season competing at the Ostrava World Cup where she once again won silver behind Maksyuta. In 2012, Belak made her debut at the
Doha World Cup where she won bronze on vault behind
Giulia Steingruber of Switzerland and
Nadine Jarosch of Germany. Next she competed at the Osijek Grand Prix where she failed to qualify to the vault final but placed fourth on balance beam. In May Belak competed at the
2012 European Championships where she finished 11th on vault during qualifications and was the third reserve for the final. In June she competed at the Maribor World Cup she won her second World Cup gold medal on vault and additionally won bronze on the balance beam. At the
Ghent World Cup she finished seventh on vault. In November, Belak competed at the Ostrava World Cup where she finished eighth on vault.
2013–14 2013 was a breakout year for Belak as she competed in numerous high-profile international events beyond the
World Cup series. In March she competed at the World Cups in Cottbus and Doha, placing fifth on vault and sixth on balance beam in Doha. In April Belak competed at the
2013 European Championships where she qualified to the vault final and finished in fourth place, finishing .300 points behind the two silver medalists
Larisa Iordache and
Noël van Klaveren. The following week she competed at the Ljubljana World Cup in her hometown; she finished eighth on both vault and balance beam. In June Belak competed at the
2013 Mediterranean Games in
Mersin. Although she qualified to the
vault final in second place, she ended up placing sixth. Additionally she helped Slovenia finish sixth as a team. The following month she competed at the
Summer Universiade where she finished seventh on vault and helped Slovenia finish 11th as a team. In October Belak represented Slovenia at the
World Championships in
Antwerp. During
qualifications she finished 11th on vault and was the third reserve for the vault final. Belak began the 2014 season competing at the
Cottbus World Cup. During qualifications she finished 18th on vault and 9th on balance beam. Next she competed at the Doha World Cup where she won silver on vault behind
Larisa Iordache. The following month she competed at the Osijek World Cup where she won the bronze on vault. Belak next competed at the
European Championships. During qualifications she placed 15th on vault and 35th on balance beam and therefore did not qualify for any event finals. She ended the season competing at the Anadia World Cup where she won gold on vault and silver on balance beam.
2015 Belak began the season competing at the
Cottbus World Cup where she won the bronze medal on vault behind
Oksana Chusovitina and compatriot
Tjaša Kysselef. Additionally she finished eighth on uneven bars. The following week she competed in Doha where she once again won the bronze medal on vault. Continuing on the series she next competed in her hometown of
Ljubljana where she won the silver medal on vault behind Chusovitina. Belak competed at the
European Championships where she qualified to the vault final in seventh place and placed 32nd on uneven bars. During event finals she finished eighth on vault. After the European Championships Belak continued competing at the World Cup series. She won the silver medal on vault at the Varna World Cup, once again behind Chusovitina. Afterwards she competed in Anadia where she placed sixth on vault and eighth on uneven bars. In September she competed at the Osijek World Cup where she finished eighth on both vault and uneven bars. Later that month she competed at the Hungarian Grand Prix where she finished second in the all-around. As for event finals she won silver on vault behind
Boglárka Dévai, bronze on uneven bars, and placed fifth on balance beam. In October Belak represented Slovenia at the
World Championships in
Glasgow. She placed 58th in the all-around during qualifications and 15th on vault; she did not qualify for any individual event finals.
2016 Belak began the season competing at the
Doha World Cup where she won silver on vault behind
Giulia Steingruber. She next competed in Cottbus where she placed seventh on vault and eighth on balance beam. Next she competed in Ljubljana and won silver on vault, bronze on uneven bars, place fourth on balance beam, and seventh on floor exercise. In April Belak was selected to represent Slovenia at the
Olympic Test Event. She finished 52nd in the all-around and
qualified as an individual to the
2016 Olympic Games in
Rio de Janeiro. In May Belak competed at the Varna Challenge Cup where she finished eighth on uneven bars. In June she competed at the
European Championships; she finished sixth on vault. Belak finished the season competing at the
2016 Olympic Games. During
qualifications she only competed on vault where she finished 19th and did not qualify to the
vault event final.
2017–18 Belak competed at the
2017 World Cups Baku and
Doha, earning bronze on vault at both. In April she competed at the
European Championships where she placed seventh on vault. She spent the remainder of the season competing in the World Cup series, earning bronze medals in
Koper and
Varna and finished eighth in Osijek. Belak began the 2018 season once again competing at the
World Cups in Baku and Doha, finishing sixth and eighth on vault respectively. In June Belak competed at the
Mediterranean Games. She helped Slovenia finish sixth in the team final. Individually she won the bronze medal on vault and placed seventh on balance beam. In August Belak competed at the
European Championships where she finished eighth on vault. In early October she competed at the Leverkusen Cup in Germany where she helped Slovenia win gold as a team; she posted the second highest score on balance beam. Belak was selected to represent Slovenia at the
2018 World Championships in Doha, Qatar. She finished 16th on vault and did not qualify to the event final. Belak ended the season competing at the Cottbus World Cup, which was the first World Cup event to be used to accumulate points towards
qualification to the 2020 Olympic Games. While there Belak finished eighth on vault.
2019 Belak began the season competing at the Baku and Doha
World Cups but did not qualify for any event finals. In April she competed at the
European Championships and qualified to the vault final in second place. However, during the final she fell on her double twisting yurchenko and finished in eighth place. She next competed at the Osijek and Koper Challenge Cups where she won gold and silver on vault respectively. In June Belak represented Slovenia at the
European Games. While there she won the gold medal on
vault, finishing ahead of
Angelina Melnikova of Russia. In August and September Belak competed at the Mersin and Szombathely Challenge Cups, winning gold on vault and silver on balance beam in Mersin and winning silver on both vault and balance beam in Szombathely. In October Belak competed at the
World Championships in
Stuttgart. During qualifications she finished 15th on vault and did not qualify for the event final. The all-around competition was used as
Olympic qualification for individuals; Belak placed 144th and did not qualify to the
2020 Olympic Games. She ended the season competing at the Cottbus World Cup where she finished second on vault behind
Yu Linmin of China.
2020–21 Belak competed at the
2020 Melbourne World Cup where she placed seventh on vault. She next competed at the
Baku World Cup, qualifying to the vault final in first place. However event finals were canceled due to the
COVID-19 pandemic in Azerbaijan. The
FIG later ruled that the results of qualification would be used for point distribution for
Olympic qualification. On May 31, 2021 Belak and her partner, fellow Slovenian gymnast
Žiga Šilc, welcomed a son.
2022–24 Belak returned to competition in March where she competed at the
2022 Cairo World Cup, less than a year after giving birth. She was the first reserve on balance beam but received a 0 on her first vault and did not qualify for the final. Belak next competed at the
Baku World Cup where she qualified to the vault final in second place. During the event final she won bronze behind
Oksana Chusovitina and
Csenge Bácskay. At the Osijek Challenge Cup she won silver on vault behind
Valentina Georgieva. In October Belak won gold on vault at the
Mersin Challenge Cup. She ended the season competing at the
2022 World Championships where she finished 15th on vault during qualifications. In the summer of 2023 Belak gave birth to her second child. She intended to compete at the
2024 European Championships less than eight months after giving birth. However she suffered a foot injury which kept her from competing for the rest of the season.
2025 Belak returned to competition in 2025, competing at numerous
World Cups. She won gold in Cottbus, sharing a podium with compatriot
Tjaša Kysselef and fellow mother
Oksana Chusovitina. This podium garnered significant media attention due to the fact that the ages of three medallists equalled 110. Additionally she won silver in Baku behind Chusovitina and won another gold in Doha. == Competitive history ==