[1][2] Frantz additionally entered beauty pageants such as Princess Girl Summer 2009, Fall of Miss Rio Grande do Sul 2009, Miss Arroyo del Tigre 2010, Miss Rio Grande do Sul 2010 (step local), Miss Rio Grande do Sul 2010, the EC Musa Avenue 2010, Queen of Industry and Commerce of Rio Grande do Sul 2010, Princess Queen of Industry and Commerce of Rio Grande do Sul, Musa Gauchão 2010, Girl Jacuí Regional, Musa Sun RS, Musa Regional Clubs, and Queen City of Arroio do Tigre.
[citation needed] In 2011, Frantz represented Brazil at Miss Atlantic International in Punta del Este, Uruguay; the event's goal was to promote the exchange of cultures and tourism in Latin America.
She also participated in the variety show Studio Pampa, an arrangement brokered by a model management agency in São Paulo.
At the event, representatives of 27 states and several Brazilian islands totaled 37 candidates, all of whom arrived in Rio de Janeiro on March 31 and went to the Portobello Resort & Safari where they participated in competition.
[6] In the contest, Frantz developed a social project where she collected thousands of pieces of clothing for donation in her hometown of Arroio do Tigre of Rio Grande do Sul.
Frantz was appointed to represent Brazil at the Miss Supranational 2023 on July 14, 2023 in Malopolska, Poland where she was second runner-up and was named the Supra Influencer Award.