Ana Carolina Vieira entered black belt competition without any adjustment period. She established herself immediately as one of the most formidable women in the middleweight division, winning the IBJJF World Championship in 2017, 2018, 2019, 2021, and 2022 — five gold medals that place her among the most decorated women in the event's history. The gap in 2020 reflected global disruptions rather than any decline in her competitive standing.
Her 2018 season was particularly commanding. Beyond defending her gi World title, she also captured the IBJJF World No-Gi Championship, demonstrating that her excellence extended well beyond a single ruleset. She continued building her résumé across multiple fronts, winning the IBJJF Pan Championship in 2021 and 2023, while reaching the runner-up position in the absolute division at both events — a testament to her ability to compete beyond her weight class against the sport's best.
In 2020, Ana Carolina took gold at the 3CG Kumite 7 Grand Prix, proving her effectiveness in submission-only competition. The crowning achievement of her no-gi journey came in 2024, when she captured gold at the ADCC World Championship — the most prestigious no-gi event in the sport — cementing her status as a complete competitor across every major format. Absolute division appearances at the World Championship produced bronze medals in 2018, 2022, and 2023, underscoring the consistency with which she performs at the sport's highest level.