Olmos is the daughter of a Mexican man and a Mexican-Austrian woman, who was born in the Austrian city of Schwarzach im Pongau, and moved to Fremont, California at the age of two.

[5] Along with her two younger sisters she was taken to events attended by Mexican sportswomen, like golfer Lorena Ochoa and tennis player Melissa Torres Sandoval.

[6] Holding citizenship for three countries, she played for the United States in junior and ITF tournaments and ranked second among American players until the age of 16, when she accepted an offer to represent Mexico, who would sponsor her, pay for travel expenses and give her a spot in the Junior Fed Cup and Fed Cup teams.

While attending the University of Southern California, majoring in international relations and minoring in occupational therapy, Olmos took part in two editions of the Summer Universiade, in 2013 and 2015.

In May, Olmos won the biggest title in her tennis career at the WTA 1000 Italian Open, partnering with Fichman; in the final, they defeated the pair of Kristina Mladenovic and Markéta Vondroušová who were making their debut playing together.

They entered the tournament as alternates and defeated top seeds Hsieh/Mertens and the Japanese fourth-seeded duo Aoyama/Shibahara en route to the championship match.

[10] At the US Open, Olmos partnered Marcelo Arévalo in the mixed doubles draw and reached the final by defeating top seeds Nicole Melichar-Martinez and Ivan Dodig en-route.

[23] Partnering with Alexandra Panova, Olmos was runner-up in the doubles at the Monterrey Open, losing to Guo Hanyu and Monica Niculescu in final.

[24] Partnering Desirae Krawczyk, Olmos won the doubles title at the Singapore Open, defeating Wang Xinyu and Zheng Saisai in the final.

Only main-draw results in WTA Tour, Grand Slam tournaments, Fed Cup/Billie Jean King Cup and Olympic Games are included in win–loss records.