In the same pivotal year, she joined the elite Bowerman Track Club and signed a professional contract with Nike, marking her professional debut. Frerichs quickly ascended to the international stage, making her Olympic debut at the Rio de Janeiro Games in 2016, where she distinguished herself by placing 11th in the highly competitive 3000-meter steeplechase event, establishing her presence among the world’s top athletes. Frerichs swiftly built upon her Olympic debut, earning a silver medal at the 2017 World Championships in London. This performance was particularly notable as she contributed to a historic 1-2 finish for American women in the 3000-meter steeplechase, competing alongside Emma Coburn and solidifying the U.S.’s global dominance in the event.
This medal marked another significant milestone in her illustrious career. Demonstrating her unwavering competitive spirit and dedication, she consistently achieved top-tier results, including multiple silver medals at various USATF Outdoor Championships spanning from 2016, 2017, 2018, 2019, and again at the highly contested 2020 Olympic Trials. Frerichs has also been a consistent fixture on the global championship stage, competing in the World Athletics Championships, placing an impressive sixth in both 2019 and 2022, and securing another silver medal at the 2018 IAAF Continental Cup, underscoring her enduring presence and elite performance in track and field.