Montserrat Ruiz has five losses against five opponents on her MMA record. For a list of Ruiz's best fights, refer to "Best fights of Montserrat Ruiz".
On November 1, 2025 Montserrat Ruiz faced off against Alice Ardelean in a strawweight bout at age 32. She was coming in with a record of 10-5 (5). Ruiz lost the fight via 3-round unanimous decision.
On November 4, 2023 Montserrat Ruiz faced off against Eduarda Moura in a strawweight bout at age 30. She was coming in with a record of 10-4 (5). Ruiz lost the fight via 2nd-round TKO.
On August 12, 2023 Montserrat Ruiz faced off against Jaqueline Amorim in a strawweight bout at age 30. She was coming in with a record of 10-3 (5). Ruiz lost the fight via 3rd-round TKO.
On July 17, 2021 Montserrat Ruiz faced off against Amanda Lemos in a strawweight bout at age 28. She was coming in with a record of 10-2 (5), and Lemos was 34 years old and with a record of 9-1-1 (7). Ruiz lost the fight via 1st-round TKO.
On December 15, 2018 Montserrat Ruiz faced off against Danielle Taylor in a strawweight bout at age 25. She was coming in with a record of 8-1 (4). Ruiz lost the fight via 3-round unanimous decision.
