Plazas was born on April 18, 2000, in Bogotá, Colombia, to parents Diego Plazas and Lina Medina. She has a younger sister, Natalia. Plazas immigrated to the United States from Colombia with her family when she was six years old.[1]
Plazas began learning how to skate at age 12. Before transitioning to pair skating, she was a two-time national medalist on the U.S. collegiate level. For a time, she considered representing her native Colombia internationally as a single skater, but ultimately chose to partner with Fernandez for the United States in February 2020.[1]
2020–21 season
Plazas/Fernandez debuted together at the 2021 U.S. Championship Series on the junior level, winning the bronze medal. They went on to win the bronze medal at the 2021 U.S. Junior Championships.[3]
2021–22 season
Plazas/Fernandez began their season by winning the silver medal at both the 2021 USCS Nevada and USCS Massachusetts. Debuting as a senior pair team at the 2022 U.S. Championships, Plazas/Fernandez finished sixth.[3]
2022–23 season
Plazas/Fernandez began the season at the 2022 John Nicks Pairs Challenge and the 2022 CS U.S. Classic, winning bronze at both events. They then went on to place fifth at the 2022 CS Finlandia Trophy.[4]
In advance of the 2024 U.S. Championships, Plazas/Fernandez were preemptively named to the American team for the 2024 Four Continents Championships, which were to be held in Shanghai the weekend after the national championships.[8] At the national championships, they came fourth in both segments and won the bronze medal. Fernandez called it "surreal" and "a very humbling experience" to finally reach the national championship podium.[9] They were ninth at the Four Continents Championships.[10]
Although the pair was scheduled to compete on the Grand Prix circuit at the 2024 NHK Trophy and the 2024 Cup of China, they announced via their shared Instagram account in early October that they had withdrawn from both events due to an ongoing injury.[12]