In June 1989, at the Junior European Championships in Tenerife, she took 5th place in the general classification and won team bronze together with Rosabel Espinosa and Edi Moreno.

Selected for the World Championships in Sarajevo, she was 12th in the All-Around, 8th in the hoop final and also won the team bronze medal along Ana Bautista and Silvia Yustos.

In 1990, in the VI City of Barcelona International Cup, she won gold in the All-Around and with ball, silver with ribbon and bronze with hoop.

In addition, she was proclaimed Spanish champion in the honor category, ahead of Noelia Fernández and Mónica Ferrández, in Guadalajara.

After Boneva's death on 20 September 2019, Ada and other former national gymnasts gathered to pay tribute to her during the Euskalgym held on 16 November 2019.