Stiliana Nikolova

2019

She competed at the 2019 Bulgarian Junior National Championships, where she won the gold medal in the all-around in addition to the ball and ribbon finals, and the silver medal in the rope and clubs finals.^[13] She competed at the 2019 Junior World Championships in Moscow, Russia, where she placed 8th in the team competition and 16th in clubs qualifications.

2020

In 2020, she became the Bulgarian junior national all-around champion once again. She also won gold with ball, clubs and ribbon and a bronze medal with rope. Next, Nikolova competed at the International Tournament in Moscow, where she and her teammate Eva Brezalieva took second place in the team competition and Nikolov won the silver medal in clubs.^[14] She also won the gold medal in the all-around at the International Tournament Corbeil-Essonnes in France. In the finals, she placed first with rope and ball and third with ribbon. In November, she competed at the 2020 Junior European Championships in Kyiv, Ukraine and qualified for two apparatus finals. She won the gold medal with ribbon and the silver medal with ball.^[15]

2021

She made her debut in the senior category in 2021. Since it was an Olympic year, the two Bulgarian gymnasts selected to compete at the Olympics, Boryana Kaleyn and Katrin Taseva, were given priority for competing. Nevertheless, Nikolova represented Bulgaria at the Pesaro World Cup in April, where she took 9th place in the all-around. The next day, she qualified for the clubs final and finished in 8th place. She also competed at the Minsk World Challenge Cup and was 10th in the all-around, but she did not advance into apparatus finals.^[16]

2022

In the 2022 season, she participated at the 2022 Grand Prix Marbella, where she won the all-around bronze. She qualified for three apparatus finals, winning gold in hoop and clubs and taking the silver in the ball final. On April 8–10, she competed at Sofia World Cup, where she placed third in the all-around. She also won gold in clubs and silver in the ribbon final. In May, Nikolova participated at the 2022 World Challenge Cup in Pamplona, where she won silver in the all-around behind teammate Boryana Kaleyn. She also won the gold in the clubs final and silver in ball. On June 3–5, she competed at the Pesaro World Cup, where she finished 3rd in the all-around and qualified for three apparatus finals, winning bronze medals with clubs and ball and silver in hoop.

From June 15–19, Nikolova competed at the 2022 European Championships in Tel Aviv, Israel, where she won gold as part of the Bulgarian team and bronze in the all-around. On August 26–28, she competed at the 2022 World Challenge Cup Cluj-Napoca and won the silver in all-around. She also won two medals in the apparatus finals - gold in clubs and bronze in the hoop final.

She was then selected to compete at the 2022 Rhythmic Gymnastics World Championships, in Sofia, Bulgaria, along with teammate Boryana Kaleyn. She qualified to the individual all-around final and three apparatus finals. In the all-around final, she won bronze, and she also won three silver medals in the hoop, clubs and ribbon finals. She also won an Olympic quota for Bulgaria.

2023

Her first competition in the 2023 season was Grand Prix Miss Valentine in Tartu, Estonia, where she finished second in the all-around behind in Viktoriia Onopriienko and qualified to the ball, clubs and ribbon finals. She won both the ball and clubs finals.^[17]

Afterward, she competed at the 2023 Grand Prix Marbella, where she won silver in the all-around. She qualified for all four apparatus finals, winning gold in ball and clubs and bronze in hoop and ribbon.

She also took part in the Athens World Cup, where she won silver in all-around, gold in ball and bronze in the ribbon final. At the next World Cup in Sofia, she won the all-around. She qualified for all four finals, winning three more gold medals with hoop, ball and clubs. Two weeks later at the Baku World Cup, she again won gold in all-around as well as gold in the hoop, clubs and ribbon finals.

Nikolova was then selected to compete at the 2023 Rhythmic Gymnastics European Championships, in Baku, Azerbaijan. She qualified in first place for the all-around final and also for three apparatus finals. In the all-around final, she won bronze, repeating her achievement from the previous year. In the event finals the next day, she also won silver with ball and bronze with ribbon.^[18]

At the 2023 World Championships, Nikolova came in fourth in the all-around final after several mistakes. She had a drop in her ball routine, and she did not hear the signal to start her ribbon routine on time; on restarting, she had a knot in her ribbon.^[19] However, she and the rest of the Bulgarian gymnasts won first place in the team competition.^[20] She also qualified to the hoop and ball finals. Although she ended in eighth place in the hoop final, she won bronze with the ball behind Darja Varfolomeev and Sofia Raffaeli.^[21]

2024: First European title

In March, Nikolova participated in the Grand Prix stage in Marbella, Spain. She was first place in the all-around ahead of Takhmina Ikromova and the previous season's World champion, Varfolomeev. She also won the clubs and ribbon finals.^[22][23] Her next competition was the World Cup held in Sofia, Bulgaria. There she won the all-around silver behind fellow Bulgarian Boryana Kaleyn and ahead of Daria Atamanov. She also qualified to three of the apparatus finals: hoop, ball, and ribbon. Nikolova won the ball final with the highest score that had been awarded thus far under the 2022-2024 Code of Points, and she also won the ribbon final and took silver with hoop.^[24][25] Both Nikolova and Kaleyn expressed gratitude for the supportive home crowd and stated that they were aiming to win gold at the upcoming 2024 Summer Olympics.^[26]

In May, Nikolova participated in the inaugural Rhythmic Gymnastics European Cup, which had an unusual knock-out round format for the all-around final. She was the event's first winner, and she expressed interest in the new competition format.^[27][28][29] She won another Bulgarian national all-around title.^[30][31]

At the 2024 European Championships, Nikolova won her first European all-around title ahead of Raffaeli and Varfolomeev.^{[32][33][34][35]} She also won a silver medal in the hoop final, and she placed fourth in the ribbon final and fifth in the ball final.^[36]

In August, Nikolova competed at the 2024 Summer Olympics. In the qualifying round, she made multiple mistakes in her routines, especially in her club routines, where she dropped her apparatus twice. She finished in 11th place, meaning that she did not advance to the final, though she was the first reserve.^{[37][38][39][40][41]} In an interview afterward, Nikolova said that she had felt nervous before the beginning of the qualifying round.^[42][43][44] She added that while she found watching the final difficult after failing to qualify, she was very happy for her friend Kaleyn, who won the silver medal.^[45][46]

2025

Nikolova won the first internal control competition of the year in February. She said that she was happy with the new code of points, which had just entered into effect, and that she aimed to show a different character in her new routines than she had previously.^[47] Her first international competition of the year was the International Tournament Sofia Cup, held 28-30 March, where she won the all-around and the ball and clubs finals. The following week, she competed at the Sofia World Cup, where she won the all-around silver medal behind Taisiia Onofriichuk. She qualified for three apparatus finals, winning gold in the hoop and ball.

On April 18-20, she competed at the Baku World Cup and won the bronze medal in the all-around behind Sofia Raffaeli and Taisiia Onofriichuk. She qualified for all four apparatus finals and won the silver medal in the clubs final. In May, she won the gold medal in the all-around at Bulgarian National Championships. She also won gold in the hoop and ball finals and silver in the ribbon final, and she took 7th place in clubs.

From June 4 to 8, Nikolova competed in the 2025 Rhythmic Gymnastics European Championships in Tallinn, Estonia. She qualified for the three finals (she made mistakes on the ribbon). She won the silver medal in the all-around final behind Taisiia Onofriichuk, and the Bulgarian team (Eva Brezalieva, Dara Stoyanova, and the group) finished fifth. Nikolova won three gold medals in the hoop, ball, and clubs finals.^[48] In July, she was 4th in the all-around at the Milan World Cup. In the apparatus finals, she won the gold medal in clubs, silver medal in ball and bronze in hoop.^[49]

In August, Nikolova represented Bulgaria along with Eva Brezalieva at the 2025 World Championships. She qualified for every apparatus final. In the all-around final, she made a mistake at the end of her hoop routine, but she otherwise put up good performances to win the silver medal behind Darja Varfolomeev and ahead of Sofia Raffaeli.^[50]

2026

Nikolova started the season on March 28-30, competing at Sofia World Cup. She won the silver medal in the all-around behind Taisiia Onofriichuk. In the apparatus finals, she won silver with ball and bronze with clubs.^[51]