Thompson and her older sister, Alyssa, were two of the first high school athletes to have name, image, and likeness (NIL) deals with Nike.

She won bronze medals with the youth national team at the 2023 Pan American Games and the 2024 FIFA U-20 Women's World Cup.

[6] NWSL rules allowed ACFC to sign Thompson directly, rather than through the entry draft, because she was under the age of 18 at the time.

[8] Thompson recorded her first NWSL assist on October 20, 2024, during the final home match of the 2024 season against Utah Royals, setting up Sydney Leroux's equalizer to secure a 1–1 draw.

[15] In the next game, she scored the third goal in the team's 7–0 victory over Paraguay to secure the second place in their group and their spot in the knockout rounds.

[16] She assisted Ally Sentnor to open a 2–1 win over the Netherlands in the third place game, marking the United States's best result at the tournament since 2012.

[19] Thompson offcially made her senior team debut on February 20, 2025 coming on a subsuitute for Jenna Nighswonger in the first SheBelieves match against Colombia which finished as a 2–0 victory.