Semenistaja made her debut at the prestigious WTA 1000 tournament but faced an early exit in the first round, losing to the higher-ranked Kočiareto, who is 44th in the WTA standings. Despite initially qualifying for the tournament as the 103rd-ranked player, she had an impressive run in the qualifying rounds, defeating 18-year-old American Monica Ekstrand, who was given a special wildcard but has a significantly lower ranking of 366. However, the match against Kočiareto proved too challenging for Semenistaja, resulting in a quick defeat in straight sets.

Although Semenistaja's loss is disappointing, it highlights the high level of competition present at WTA 1000 events, which feature some of the best players in women's tennis. In this case, Kočiareto will move on to face Koko Gauff, a major favorite in the tournament, indicating the strength of the field. Semenistaja's journey to the main draw was made possible when several players withdrew for health reasons or schedule changes, showcasing the unpredictable nature of tournament participation.

The Miami WTA 1000 tournament, which boasts a significant prize pool of 9.4 million dollars, is one of the ten major tournaments of the season, drawing attention from tennis fans worldwide. Semenistaja's participation as a wildcard in her first WTA 1000 event could serve as valuable experience for her future competitions, particularly as she continues to develop her skills on the professional circuit alongside other prominent players, including Latvia's top player Aļona Ostapenko, who will be competing later in the second round against either Diāna Jastremska or Eshlina Krieger.