[5] In 2009, she won a bronze medal at the European U-17 Championships in the girls' doubles event partnered with her sister, Stefani Stoeva.

[7] Stoeva won her first BWF Grand Prix title at the 2014 Scottish Open in the women's doubles event with her sister.

[9] Stoeva competed in the 2015 European Games, winning gold in women's doubles alongside her younger sister[10] In 2017, the Stoevas finished as the runner-ups at the Swiss Open Grand Prix Gold tournament, losing to the Chinese pair Chen Qingchen and Jia Yifan in the straight games.

The Stoeva are increasingly being considered on the BWF World Tour, as proven by their ability to reach the semi-finals at the China Open, beating top pairs such as Lee So-hee and Shin Seung-chan in the second round, and then Chen Qingchen and Jia Yifan in the quarter-finals.

[19] They then finished runner-up in the Orléans Masters this time losing to Jongkolphan Kititharakul and Rawinda Prajongjai of Thailand.

[23] In the first semester of 2023, Stoeva has not been able to win any single titles, as her best results with Stefani was being quarter-finalists in the Malaysia, India and the German Opens.

[25] Gabriela and Stefani claimed their first title of the year by winning the gold medal at the European Games, beating Dutch pair Debora Jille and Cheryl Seinen in the finals.

In the remaining tournaments in 2023, they were able to win the International Challenge titles in Scotland, Bahrain and Wales,[27] as well as finished runner-up in the Irish Open.

[29] She and her partner reached the finals in the German Open, but lost to Chinese pair Li Yijing and Luo Xumin.