[4] In 2007, Gyenesei moved to Székesfehérvár in central Hungary to work and train with a large number of top-level athletes, including 2004 Olympic champion Zsuzsanna Vörös.

The following year, she reached into the international scene by competing at the World Modern Pentathlon Championships in Budapest, where she had won two medals, including gold for the women's team relay.

During the competition, Gyenesei struggled to attain a higher position in the early rounds, with deficient scores in pistol shooting and a one-touch épée fencing.

[7] She also upset Great Britain's Heather Fell to claim the bronze at the UIPM World Cup in Rio de Janeiro, Brazil, which included a newly combined running and shooting segment.

[8] At the 2011 World Modern Pentathlon Championships in Moscow, Russia, Gyenesei, together with her teammates Sarolta Kovács and Adrienn Tóth, displayed a spectacular performance to capture their second title in the women's relay.