[8][4] In 2013, after she won bronze at the 2013 UEFA Women's Under-17 Championship, Felanitx town hall placed a plaque in honour of Caldentey.

The staff who registered her there took her name down as the masculine Mariano instead; Caldentey was the only girl at the club throughout her time there, but never felt excluded or weird.

[10] She joined her first girls' team at the age of fourteen at UD Collerense, which played in the top flight of Spanish women's football at the time.

[17] Caldentey would later describe Collerense as a community team; relying on local talent around the Mallorcan capital meant that players became integral at a young age, but this experience set them up for success.

[18] By 2013, Última Hora dubbed Caldentey and teammate Patricia Guijarro as "the pride of Collerense" and the newspaper considered them to be among the best Balearic footballers, despite both being younger than seventeen.

[20] On 30 July 2014, Caldentey signed for Barcelona, the reigning Copa de la Reina and Primera División champions, after her success in the 2014 U-19 European Championship.

[21] During the season, she played in the quarterfinals of the 2015 Copa de la Reina, scoring in the 4–0 win versus Levante, before Barcelona was knocked out in the semifinals.

[36] In 2017, Caldentey earned her first senior national team call-up when Jorge Vilda named her to Spain's squad for two friendlies against Switzerland.

[37][38][39] Two months later, she made her international debut in an Algarve Cup match versus Japan, subbing on in the 73rd minute for Amanda Sampedro.

[43][44] After Spain qualified for the knockout rounds on their head-to-head record, she started the quarterfinal match against Austria but was subbed out in the 56th minute.

She started each match in the group stage of the tournament, where Spain received four points and moved on to the Round of 16 for the first time in their history.

[46][47][48] In the Round of 16 match, she subbed in at the 83rd minute for Virginia Torrecilla, and Spain would end up losing to eventual champions, the United States.

[50][51] She was in the starting line-up for the 2023 FIFA Women's World Cup final as Spain defeated England 1–0 to win the trophy for the first time.